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Capacitance MCQ Level - 1


10 Questions MCQ Test Topic wise Tests for IIT JAM Physics | Capacitance MCQ Level - 1


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Attempt Capacitance MCQ Level - 1 | 10 questions in 30 minutes | Mock test for Physics preparation | Free important questions MCQ to study Topic wise Tests for IIT JAM Physics for Physics Exam | Download free PDF with solutions
QUESTION: 1

The effective capacitance between A and B is

Solution:

The correct answer is: 2µF

QUESTION: 2

Time constant of a C-R 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

Solution:

The correct answer is: 4 : 1

QUESTION: 3

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

Solution:

The given circuit is equivalent to a parallel combination two identical capacitors
Hence equivalent capacitance between A and B is

 


C = ε0A/d + ε0A/d
= 2ε0A/d

QUESTION: 4

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
Solution:

Your answer is incorrect.

The correct answer is: F/2

QUESTION: 5

In the combination shown in the figure, the ideal voltmeter reading will be
Solution:


The correct answer is: 2V

QUESTION: 6

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
Solution:


QUESTION: 7

For the circuit shown in figure, the equivalent capacitance of the combination is
Solution:

QUESTION: 8

Between the plates of parallel plate condenser a plate of thickness t1 and dielectric constant k1 is placed in the rest of the space, there is another plate of thickness t2 and dielectric constant k2. The potential difference across the condenser will be
Solution:

QUESTION: 9

In the figure shown, the effective capacitance between the points P and Q, if each has capacitance C is
Solution:



The correct answer is: 2C

QUESTION: 10

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
Solution:


The correct answer is: 

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