Embibe Experts Solutions for Chapter: Capacitance, Exercise 3: Exercise - 3

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Embibe Experts Physics Solutions for Exercise - Embibe Experts Solutions for Chapter: Capacitance, Exercise 3: Exercise - 3

Attempt the free practice questions on Chapter 23: Capacitance, Exercise 3: Exercise - 3 with hints and solutions to strengthen your understanding. Alpha Question Bank for Engineering: Physics solutions are prepared by Experienced Embibe Experts.

Questions from Embibe Experts Solutions for Chapter: Capacitance, Exercise 3: Exercise - 3 with Hints & Solutions

EASY
JEE Main/Advance
IMPORTANT

Two capacitors C1 and C2 are charged to 120 V and 200 V, respectively. It is found that by connecting them together the potential on each one can be made zero. Then

EASY
JEE Main/Advance
IMPORTANT

A parallel plate capacitor is made of two circular plates separated by a distance of 5 mm and with a dielectric of a dielectric constant 2.2 between them. When the electric field in the dielectric is 3×104 V m-1, the charge density of the positive plate will be close to

MEDIUM
JEE Main/Advance
IMPORTANT

In the given circuit, the charge Q2 on the 2 μF capacitor changes as C is varied from 1 μF to 3 μFQ2 as a function of C is given properly by (figures are drawn schematically and are not to scale)

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MEDIUM
JEE Main/Advance
IMPORTANT

A combination of capacitors is set up as shown in the figure. The magnitude of the electric field, due to a point charge Q (having a charge equal to the sum of the charges on the 4 μF and 9 μF capacitors), at a point distance 30 m from it, would equal

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HARD
JEE Main/Advance
IMPORTANT

A capacitance of 2 μF is required in an electrical circuit across a potential difference of 1.0 kV. Many 1 μF capacitors are available which can withstand a potential difference of not more than 300 V. The minimum number of capacitors required to achieve this is

HARD
JEE Main/Advance
IMPORTANT

In the given circuit diagram when the current reaches a steady state in the circuit, the charge on the capacitor of capacitance C will be

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MEDIUM
JEE Main/Advance
IMPORTANT

A parallel plate capacitor of capacitance 90 pF is connected to a battery of emf 20 V. If a dielectric material of dielectric constant K=53 is inserted between the plates, the magnitude of the induced charge will be:

MEDIUM
JEE Main/Advance
IMPORTANT

In an LCR circuit as shown below both switches are open initially. Now the switch S1 is closed, S2 kept open. (q is the charge on the capacitor and τ=RC is capacitive time constant). Which of the following statement is correct?

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