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Two identical capacitors have the same capacitance C . The negative ends of the capacitors are connected together. One of them is charged to potential V1 and the other V2. When the positive ends are also connected, the decreases in energy of the combined system is

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Important Questions on Capacitance and Capacitors

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12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 4 - Capacitance and Capacitors>EXERCISE 4>Q 53

Four metal plates numbered 1,2,3 and 4 are arranged as shown in Figure.The area of each plate is $A$ and the separation between adjacent plate is d. The capacitance of the arrangement is

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12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 4 - Capacitance and Capacitors>EXERCISE 4>Q 1
One of the plates of a capacitor is connected to a battery of emfE and the other plate is connected to earth. The potential difference between the charged plates is _____ when the earthing wire is removed.
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12th West Bengal Board
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A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 4 - Capacitance and Capacitors>EXERCISE 4>Q 2
The capacitance of a conductor is numerically equal to the amount of charge required for _____ change of its potential.
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12th West Bengal Board
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A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 4 - Capacitance and Capacitors>EXERCISE 4>Q 3
 A conductor of greater size has _____ capacitance. 
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12th West Bengal Board
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A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 4 - Capacitance and Capacitors>EXERCISE 4>Q 4
Presence of a conductor, particularly the earthed ones, near to a charged conductor _____ the potential of the latter.
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12th West Bengal Board
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A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 4 - Capacitance and Capacitors>EXERCISE 4>Q 5
The effect of Presence of a dielectric medium near a conductor _____ its capacitance.
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12th West Bengal Board
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A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 4 - Capacitance and Capacitors>EXERCISE 4>Q 6
 Unit of capacitance in SI is _____.
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12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 4 - Capacitance and Capacitors>EXERCISE 4>Q 7
 With increase in surface area of a body, capacitance _____.