c or d
The capacitors shown in the circuit have capacitance C1 = C and C2 = 3C and they have been charged to potenitals V1=2V0 and V2=3V0 respectively. Switch S is closed to connect them to the inductor L. (a) Find the maximum current through the inductor (b) Find potential difference across C1 and C2 when the current in the inductor is maximum.
08
Sep
The capacitors shown in the circuit have capacitance C1 = C and C2 = 3C and they have been charged to potenitals V1=2V0 and V2=3V0 respectively. Switch S is closed to connect them to the inductor L. (a) Find the maximum current through the inductor (b) Find potential difference across C1 and C2 when the [...]
Tags:
a or b ,
c or d ,
E = 120 V ,
In the circuit shown in fig ,
In the circuit shown in Figure ,
Initially the 900μF capacitor is charged to 100 V and the 100μF capacitor is uncharged in Fig. Then switch S2 is closed for time t1 ,
is at higher potential? (c) What is the potential difference Vcd across the inductor L? (d) Which point ,
is at steady state. if R1 = R2= R3 =R and the current through each resistor is i. Find the currents through the resistors immediately after the switch S is opened. ,
R1 = 30.0 Ω ,
R2 =50.0Ω and L = 0.200 H. Switch S is closed at t=0. Just after the switch is closed.(a) What is the potential difference Vab across the inductor R1? (b) Which point ,
A metal rod OA of mass ‘m’ and length ‘r’ is kept rotating with a constant angular speed ω in a vertical plane about a horizontal axis at the end O. The free end A is arranged to slide without friction along fixed conduction circular ring in the same plane as that of rotation. A uniform and constant magnetic induction B→ is applied perpendicular and into the plane of rotation as shown in the figure below. An inductor L and an external resistance R are connected through a swithch S between the point O and a point C on the ring to form an electrical circuit. Neglect the resistance of the ring and the rod. Initially, the switch is open. (a) What is the induced emf across the teminal of the switch? (b) The switch S is closed at time t=0. (i) Obtain an expression for the current as a function of time. (ii) In the steady state, obtin the time dependence of the torque required to maintain the constant angular speed, given that the rod OA was along the positive X-axis at t=0
08
Sep
A metal rod OA of mass ‘m’ and length ‘r’ is kept rotating with a constant angular speed ω in a vertical plane about a horizontal axis at the end O. The free end A is arranged to slide without friction along fixed conduction circular ring in the same plane as that of rotation. A [...]
Tags:
a or b ,
c or d ,
E = 120 V ,
In the circuit shown in fig ,
In the circuit shown in Figure ,
Initially the 900μF capacitor is charged to 100 V and the 100μF capacitor is uncharged in Fig. Then switch S2 is closed for time t1 ,
is at higher potential? (c) What is the potential difference Vcd across the inductor L? (d) Which point ,
is at steady state. if R1 = R2= R3 =R and the current through each resistor is i. Find the currents through the resistors immediately after the switch S is opened. ,
R1 = 30.0 Ω ,
R2 =50.0Ω and L = 0.200 H. Switch S is closed at t=0. Just after the switch is closed.(a) What is the potential difference Vab across the inductor R1? (b) Which point ,
A Circuit containing a two person switch S is shown in figure. (a) Switch S is in the position 1. Find the potential difference Va- Vb and the rate of production of heat in R1. b. If now the switch S is put in position 2 at t=0. Find ltbRrgt i steady current in R4 and ii hte time when current in R4 is half the steady value. Also calculate the energy stored in the inductor L at that time.
08
Sep
A Circuit containing a two person switch S is shown in figure. (a) Switch S is in the position 1. Find the potential difference Va- Vb and the rate of production of heat in R1. b. If now the switch S is put in position 2 at t=0. Find ltbRrgt i steady current in R4 [...]
Tags:
a or b ,
c or d ,
E = 120 V ,
In the circuit shown in fig ,
In the circuit shown in Figure ,
Initially the 900μF capacitor is charged to 100 V and the 100μF capacitor is uncharged in Fig. Then switch S2 is closed for time t1 ,
is at higher potential? (c) What is the potential difference Vcd across the inductor L? (d) Which point ,
is at steady state. if R1 = R2= R3 =R and the current through each resistor is i. Find the currents through the resistors immediately after the switch S is opened. ,
R1 = 30.0 Ω ,
R2 =50.0Ω and L = 0.200 H. Switch S is closed at t=0. Just after the switch is closed.(a) What is the potential difference Vab across the inductor R1? (b) Which point ,
A metal bar AB can slide on two parallel thick metallic rails separated by a distance l. A resistance R and an inductance L are connected to the rails as shown in the figure. A long straight wire carrying a constant current I0 is placed in the plane of the rails and perpendicular to them as shown. The bar AB is held at rest at a distance x0 from the long wire. At t=0, it is made to slide on the rails away from wire. Answer the following questions. (a) Find a relation among i,didtanddϕdt, where i is the current in the circuit and ϕ is the flux of the megnetic field due to the long wire through the circuit. (b) It is observed that at time t=T, the metal bar AB si at a distance of 2×0 from the long wire and the resistance R carries a current (i1). Obtain an expression for the net charge that has flown through riesistance R form t=0 to t=T. (c) THe bar is suddenly stopped at time T. THe current through resistance R is found to be i14 at time 2T. Find the value of LR in terms of hte other given quantities.
08
Sep
A metal bar AB can slide on two parallel thick metallic rails separated by a distance l. A resistance R and an inductance L are connected to the rails as shown in the figure. A long straight wire carrying a constant current I0 is placed in the plane of the rails and perpendicular to them [...]
Tags:
a or b ,
c or d ,
E = 120 V ,
In the circuit shown in fig ,
In the circuit shown in Figure ,
Initially the 900μF capacitor is charged to 100 V and the 100μF capacitor is uncharged in Fig. Then switch S2 is closed for time t1 ,
is at higher potential? (c) What is the potential difference Vcd across the inductor L? (d) Which point ,
is at steady state. if R1 = R2= R3 =R and the current through each resistor is i. Find the currents through the resistors immediately after the switch S is opened. ,
R1 = 30.0 Ω ,
R2 =50.0Ω and L = 0.200 H. Switch S is closed at t=0. Just after the switch is closed.(a) What is the potential difference Vab across the inductor R1? (b) Which point ,
In the circuit shown in the figure a capacitor C1 is used to transfere energy to other capacitor C2. Initially capacitor of capacitance C1 =Co is charged to a potential difference of V o. switch S1 is closed simultaneously. At time t = T, S2 was opensd and itr was found that potential difference across capacitor of capacitance .
08
Sep
In the circuit shown in the figure a capacitor C1 is used to transfere energy to other capacitor C2. Initially capacitor of capacitance C1 =Co is charged to a potential difference of V o. switch S1 is closed simultaneously. At time t = T, S2 was opensd and itr was found that potential difference across [...]
Tags:
a or b ,
c or d ,
E = 120 V ,
In the circuit shown in fig ,
In the circuit shown in Figure ,
Initially the 900μF capacitor is charged to 100 V and the 100μF capacitor is uncharged in Fig. Then switch S2 is closed for time t1 ,
is at higher potential? (c) What is the potential difference Vcd across the inductor L? (d) Which point ,
is at steady state. if R1 = R2= R3 =R and the current through each resistor is i. Find the currents through the resistors immediately after the switch S is opened. ,
R1 = 30.0 Ω ,
R2 =50.0Ω and L = 0.200 H. Switch S is closed at t=0. Just after the switch is closed.(a) What is the potential difference Vab across the inductor R1? (b) Which point ,
An inductor of inductance 2.0mH is connected across a charged capacitor of capacitance 5.0μF and the resulting L−C circuit is set oscillating at its natural frequency. Let Q denote the instantaneous change on the capacitor and i the current in the circuit. It is found that the maximum value of Q is 200μC . (a) When Q=100μC , what is the value of |di/dt| ? (b) When Q=200μC , what is the value of i ? (c)Find the maximum value of i (d) When i is equal to one-half its maximum value, what is the value of |Q| ?
08
Sep
An inductor of inductance 2.0mH is connected across a charged capacitor of capacitance 5.0μF and the resulting L−C circuit is set oscillating at its natural frequency. Let Q denote the instantaneous change on the capacitor and i the current in the circuit. It is found that the maximum value of Q is 200μC . (a) [...]
Tags:
a or b ,
c or d ,
E = 120 V ,
In the circuit shown in fig ,
In the circuit shown in Figure ,
Initially the 900μF capacitor is charged to 100 V and the 100μF capacitor is uncharged in Fig. Then switch S2 is closed for time t1 ,
is at higher potential? (c) What is the potential difference Vcd across the inductor L? (d) Which point ,
is at steady state. if R1 = R2= R3 =R and the current through each resistor is i. Find the currents through the resistors immediately after the switch S is opened. ,
R1 = 30.0 Ω ,
R2 =50.0Ω and L = 0.200 H. Switch S is closed at t=0. Just after the switch is closed.(a) What is the potential difference Vab across the inductor R1? (b) Which point ,
Initially the 900μF capacitor is charged to 100 V and the 100μF capacitor is uncharged in Fig. Then switch S2 is closed for time t1, after which it is opened and at the same instant switch S1 is closed for time t2 and then opened. It is now found that 100μF capacitor is charged to 300μF capacitor is charged to 300 V. Find the minimum possible value of the time interval t1 and t2.
08
Sep
Initially the 900μF capacitor is charged to 100 V and the 100μF capacitor is uncharged in Fig. Then switch S2 is closed for time t1, after which it is opened and at the same instant switch S1 is closed for time t2 and then opened. It is now found that 100μF capacitor is charged to [...]
Tags:
a or b ,
c or d ,
E = 120 V ,
In the circuit shown in fig ,
In the circuit shown in Figure ,
Initially the 900μF capacitor is charged to 100 V and the 100μF capacitor is uncharged in Fig. Then switch S2 is closed for time t1 ,
is at higher potential? (c) What is the potential difference Vcd across the inductor L? (d) Which point ,
is at steady state. if R1 = R2= R3 =R and the current through each resistor is i. Find the currents through the resistors immediately after the switch S is opened. ,
R1 = 30.0 Ω ,
R2 =50.0Ω and L = 0.200 H. Switch S is closed at t=0. Just after the switch is closed.(a) What is the potential difference Vab across the inductor R1? (b) Which point ,
In an LC circuit as shown in figure, the switch is closed at t=0. Qmax = 100 muC ; L = 40 mH; C = 100 muF. (a) Determine the equation for instantaneous charge on the capacitor. (b) Determine the equation for instantaneous current in the circuit.
08
Sep
In an LC circuit as shown in figure, the switch is closed at t=0. Qmax = 100 muC ; L = 40 mH; C = 100 muF. (a) Determine the equation for instantaneous charge on the capacitor. (b) Determine the equation for instantaneous current in the circuit. a or b c or d E = [...]
Tags:
a or b ,
c or d ,
E = 120 V ,
In an LC circuit as shown in figure ,
In the circuit shown in fig ,
In the circuit shown in Figure ,
is at higher potential? (c) What is the potential difference Vcd across the inductor L? (d) Which point ,
is at steady state. if R1 = R2= R3 =R and the current through each resistor is i. Find the currents through the resistors immediately after the switch S is opened. ,
R1 = 30.0 Ω ,
R2 =50.0Ω and L = 0.200 H. Switch S is closed at t=0. Just after the switch is closed.(a) What is the potential difference Vab across the inductor R1? (b) Which point ,
Consider the RL circuit in Fig. When the switch is closed in position 1 and opens in position 2, electrical work must be performed on the inductor and on the resistor. The energy stored in the inductor is for the resistor energy appears as heat. a. What is the ratio of PL/PR of the rate at which energy is stored in the inductor to the rate at which energy is dissipated in the resistor? b. Express the ratio PL/PR as a function of time. c. If the time constant of circuit is t, what is the time at which PL=PR?
08
Sep
Consider the RL circuit in Fig. When the switch is closed in position 1 and opens in position 2, electrical work must be performed on the inductor and on the resistor. The energy stored in the inductor is for the resistor energy appears as heat. a. What is the ratio of PL/PR of the rate [...]
Tags:
a or b ,
c or d ,
Consider the RL circuit in Fig. When the switch is closed in position 1 and opens in position 2 ,
E = 120 V ,
In the circuit shown in fig ,
In the circuit shown in Figure ,
is at higher potential? (c) What is the potential difference Vcd across the inductor L? (d) Which point ,
is at steady state. if R1 = R2= R3 =R and the current through each resistor is i. Find the currents through the resistors immediately after the switch S is opened. ,
R1 = 30.0 Ω ,
R2 =50.0Ω and L = 0.200 H. Switch S is closed at t=0. Just after the switch is closed.(a) What is the potential difference Vab across the inductor R1? (b) Which point ,
In the circuit shown, the switch ‘S’ has been closed for a long time and then opens at t = 0. (a) Find the current through the inductor just before the switch is opened. (b) Find the current I a long time after the switch is opened. (c) Find current I as a function of time after the switch is opened. Also write the current through the cell as a function of time.
08
Sep
In the circuit shown, the switch ‘S’ has been closed for a long time and then opens at t = 0. (a) Find the current through the inductor just before the switch is opened. (b) Find the current I a long time after the switch is opened. (c) Find current I as a function of [...]
Tags:
a or b ,
c or d ,
E = 120 V ,
In the circuit shown ,
In the circuit shown in fig ,
In the circuit shown in Figure ,
is at higher potential? (c) What is the potential difference Vcd across the inductor L? (d) Which point ,
is at steady state. if R1 = R2= R3 =R and the current through each resistor is i. Find the currents through the resistors immediately after the switch S is opened. ,
R1 = 30.0 Ω ,
R2 =50.0Ω and L = 0.200 H. Switch S is closed at t=0. Just after the switch is closed.(a) What is the potential difference Vab across the inductor R1? (b) Which point ,