The effective capacitance between A and B is
The correct answer is: 2µF
Time constant of a CR circuit is second. Capacitor is discharged at time t = 0. The ratio of charge on the capacitor at time t = 2s and t = 6s is
The correct answer is: 4 : 1
Four plates are arranged as shown in the diagram. If area of each plate is A and the distance between two neighboring parallel plates is d, then the capacitance of this system will be
The given circuit is equivalent to a parallel combination two identical capacitors
Hence equivalent capacitance between A and B is
C = ε_{0}A/d + ε_{0}A/d
= 2ε_{0}A/d
Force acting upon a charged particle kept between the plates of a charged condenser is F. If one of the plate of the condenser is removed, force acting on the same particle becomes
Your answer is incorrect.
The correct answer is: F/2
In the combination shown in the figure, the ideal voltmeter reading will be
The correct answer is: 2V
A parallel plate capacitor of plate area A and separation d is filled with two materials each of thickness d/2 and dielectric constants ∈_{1} and ∈_{2} respectively. The equivalent capacitance will be
For the circuit shown in figure, the equivalent capacitance of the combination is
Between the plates of parallel plate condenser a plate of thickness t_{1} and dielectric constant k_{1} is placed in the rest of the space, there is another plate of thickness t_{2} and dielectric constant k_{2}. The potential difference across the condenser will be
In the figure shown, the effective capacitance between the points P and Q, if each has capacitance C is
The correct answer is: 2C
Two spherical conductor A and B of radii a and b (b > a) are placed concentrically in air. A is given a charge +Q while B is earthed. Then the equivalent capacitance of the system is
The correct answer is:
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