The potential difference Va- Vb for the circuit shown in figure is -(22/x) V. Find the value of x.
Sahay Sir > Question Answers > The potential difference Va- Vb for the circuit shown in figure is -(22/x) V. Find the value of x.
An infinite line charge of uniform electric charge density λ lies along the axis electrically conducting infinite cylindrical shell of radius R. At time t=0, the space in the cylinder is filled with a material of permittivity ε and electrical conductivity σ. The electrical conduction in the material follows Ohm’s law. Which one of the following best describes the subsequent variation of the magnitude of current density j(t) at any point in the material?
13
Nov
An infinite line charge of uniform electric charge density λ lies along the axis electrically conducting infinite cylindrical shell of radius R. At time t=0, the space in the cylinder is filled with a material of permittivity ε and electrical conductivity σ. The electrical conduction in the material follows Ohm’s law. Which one of the [...]
Two batteries with e.m.f 12 V and 13 V are connected in parallel across a load resistor of 10Ω. The internal resistances of the two batteries are 1Ω and 2Ω respectively. The voltage across the load lies between :
13
Nov
Two batteries with e.m.f 12 V and 13 V are connected in parallel across a load resistor of 10Ω. The internal resistances of the two batteries are 1Ω and 2Ω respectively. The voltage across the load lies between : The potential difference Va- Vb for the circuit shown in figure is -(22/x) V. Find the [...]
In an LCR circuit as shown below both switches are open initially. Now switch S1 kept open. (q is charge on the capacitor and τ=RC is Capacitive time constant). Which of the following statement is correct?
12
Nov
In an LCR circuit as shown below both switches are open initially. Now switch S1 kept open. (q is charge on the capacitor and τ=RC is Capacitive time constant). Which of the following statement is correct? The potential difference Va- Vb for the circuit shown in figure is -(22/x) V. Find the value of x. [...]
A resistor ‘R’ and 2(μ)F capacitor in series is connected through a switch to 200 V direct supply. A cross the capacitor is a neon bulb that lights up at 120 V. Calculate the value of R to make the bulb light up 5 s after the switch has been closed. (log 102.5 = 0.4)
12
Nov
A resistor ‘R’ and 2(μ)F capacitor in series is connected through a switch to 200 V direct supply. A cross the capacitor is a neon bulb that lights up at 120 V. Calculate the value of R to make the bulb light up 5 s after the switch has been closed. (log 102.5 = 0.4) [...]
LetC be the capacitance of a capacitor discharging through a resistor R. Suppose t1 is the time taken for the energy stored in the capacitor to reduce to half its initial value and t2 is the time taken for the charge to reduce to one-fourth its initial value. Then the ratio t1/t2 will be
12
Nov
LetC be the capacitance of a capacitor discharging through a resistor R. Suppose t1 is the time taken for the energy stored in the capacitor to reduce to half its initial value and t2 is the time taken for the charge to reduce to one-fourth its initial value. Then the ratio t1/t2 will be The [...]
The potential difference Va- Vb for the circuit shown in figure is -(22/x) V. Find the value of x.
12
Nov
The potential difference Va- Vb for the circuit shown in figure is -(22/x) V. Find the value of x. The potential difference Va- Vb for the circuit shown in figure is -(22/x) V. Find the value of x. November 12, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,