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In the circuit shown in figure, the battery has negligible internal resistance. Show that the current in the circuit through the battery rise instantly to its steady state value E/R when the switch is closed, provided that resistance R is root L/C.
08
Sep
In the circuit shown in figure, the battery has negligible internal resistance. Show that the current in the circuit through the battery rise instantly to its steady state value E/R when the switch is closed, provided that resistance R is root L/C. In the circuit shown in Figure provided that resistance R is root L/C. [...]
A metal wire AB of length 10 cm is placed in front of a concave mirror of focal length 15 cm as shown in figure. Find the length of the wire.
08
Sep
A metal wire AB of length 10 cm is placed in front of a concave mirror of focal length 15 cm as shown in figure. Find the length of the wire. A metal wire AB of length 10 cm is placed in front of a concave mirror of focal length 15 cm as shown in [...]
A thin rod of length f/3 is placed along the optical axis of a concave mirror of focal length f such that its image which is real and elongated just touches the rod. Calculate the magnification.
08
Sep
A thin rod of length f/3 is placed along the optical axis of a concave mirror of focal length f such that its image which is real and elongated just touches the rod. Calculate the magnification. A thin rod of length f/3 is placed along the optical axis of a concave mirror of focal length [...]
The distance between a real object and its image in a convex mirror of focal length 12 cm is 32 cm. Find the size of image if the object size is 1 cm.
08
Sep
The distance between a real object and its image in a convex mirror of focal length 12 cm is 32 cm. Find the size of image if the object size is 1 cm. The distance between a real object and its image in a convex mirror of focal length 12 cm is 32 cm. Find [...]
An image of a candle on a screen is found to be double its size. When the candle is shifted by a distance of 5 cm, then the image becomes triple its size. Find the nature and radius of curvature of the mirror.
08
Sep
An image of a candle on a screen is found to be double its size. When the candle is shifted by a distance of 5 cm, then the image becomes triple its size. Find the nature and radius of curvature of the mirror. An image of a candle on a screen is found to be [...]
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 ,
The focal length of a concave mirror is 30 cm. Find the position of the object in front of the mirror, so that the image is three times the size of the object.
08
Sep
The focal length of a concave mirror is 30 cm. Find the position of the object in front of the mirror, so that the image is three times the size of the object. so that the image is three times the size of the object. The focal length of a concave mirror is 30 cm. [...]
A long cylindrical wire of radius R and carrying a current I. Find the total field energy of magnetic field stored per unit length inside the wire.
08
Sep
A long cylindrical wire of radius R and carrying a current I. Find the total field energy of magnetic field stored per unit length inside the wire. A long cylindrical wire of radius R and carrying a current I. Find the total field energy of magnetic field stored per unit length inside the wire. September [...]
A beam of light converges towards a point O, behind a convex mirror of focal length 20 cm. Find the nature and position of image if the point O is (a) 10 cm behind the mirror (b) 30 cm behind the mirror
08
Sep
A beam of light converges towards a point O, behind a convex mirror of focal length 20 cm. Find the nature and position of image if the point O is (a) 10 cm behind the mirror (b) 30 cm behind the mirror A beam of light converges towards a point O behind a convex mirror [...]