A soap bubble is given a negative charge. Then its radius-

Important Questions on Electrostatics-General Properties of Electric Charge

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12th West Bengal Board

IMPORTANT

A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 1 - Electrostatics-General Properties of Electric Charge>EXERCISE 1>Q 5

When ${10}^{19}$ electrons are removed from a neutral metal plate, the electric charge on it (in coulomb) is 

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12th West Bengal Board

IMPORTANT

A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 1 - Electrostatics-General Properties of Electric Charge>EXERCISE 1>Q 6

An insulated metallic sphere $\left(x\right)$ is charged and is covered by another insulated hollow metallic sphere $\left(y\right)$. If a connection is made between the two,

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12th West Bengal Board

IMPORTANT

A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 1 - Electrostatics-General Properties of Electric Charge>EXERCISE 1>Q 7

Two identical metal spheres $A$ and $B$ have exactly equal masses. $A$ is given a positive charge $q$ coulomb and $B$ is given an equal amount of negative charge. Then

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12th West Bengal Board

IMPORTANT

A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 1 - Electrostatics-General Properties of Electric Charge>EXERCISE 1>Q 8

A conductor which is required to retain its charge for a long time should be 

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12th West Bengal Board

IMPORTANT

A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 1 - Electrostatics-General Properties of Electric Charge>EXERCISE 1>Q 9

Consider a neutral conducting sphere. A positive point charge is placed outside the sphere. The net charge on the sphere is then

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12th West Bengal Board

IMPORTANT

A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 1 - Electrostatics-General Properties of Electric Charge>EXERCISE 1>Q 10

When a body is earth connected, electrons from the earth flow into the body. This means the body is:

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12th West Bengal Board

IMPORTANT

A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 1 - Electrostatics-General Properties of Electric Charge>EXERCISE 1>Q 11

A metal ball having no net charge is brought near to a metal plate carrying a positive charge. The electric force on the ball will be 

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12th West Bengal Board

IMPORTANT

A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 1 - Electrostatics-General Properties of Electric Charge>EXERCISE 1>Q 12

A positive charge is brought near to an insulated metal cube.