Electrostatic Force

Q.

Which of the following is/are non-contact force(s)?

1. Gravitational Force

2. Electrostatic Force

3. Muscular Force

4. Magnetic Force

1. 1, 3 and 4

2. 1 and 3

3. 1, 2 and 4

4. All of the above

Q.

What is the force which acts between charged particles at rest known as?

1. Weak nuclear force

2. Strong nuclear force

3. Electrostatic force
4. None of these

Q. When a plastic comb is rubbed with hair, it acquires some charges due to which it attracts tiny pieces of paper. The type of charge, which the comb acquires from the hair is ___.

1. Positive
2. Negative
3. $\alpha$
4. $\beta$

Q. What happens when an ebonite rod is rubbed with wool?

1. Ebonite rod starts shining more
2. Both, ebonite rod and wool, acquire opposite charges
3. Both, ebonite rod and wool, acquire similar charges
4. Ebonite rod disintigrates into its constituent elements

Q.

Charges are of two types: negative and positive. Like charges repel while unlike charges attract each other.

1. Pressure

2. Pascal

Q. What do we call the force exerted between two charged particles at rest?

1. Electrostatic force
2. Muscular force
3. Magnetic force
4. Frictional force

Q. James combs his hair and brings the comb near some tiny pieces of paper. He finds that the comb is attracting the pieces of paper. Which force is responsible for the attraction?

1. Magnetic force
2. Gravitational force
3. Nuclear force
4. Electrostatic force

Q. Electrostatic forces act between:

1. Uncharged particles
2. Charged particles
3. Particles with mass
4. Bodies in contact

Q.

Choose the correct option:

Statement 1: When a plastic straw is rubbed with a piece of paper and brought near another plastic straw, it attracts the second straw.

Statement 2: A straw is said to have acquired electrostatic charge after it has been rubbed with a piece of paper. Therefore, it exerts an electrostatic force on the second straw and attracts it.

1. Statement 1 is wrong and statement 2 is correct explanation of it.

2. Statement 1 is correct and statement 2 is correct explanation of it.

3. Statement 1 is correct but statement 2 is wrong explanation of it.

4. Statement 1 is wrong and statement 2 is wrong explanation of it.

Q.

Charges are of two types: negative and positive. Like charges repel while unlike charges attract each other.

1. Pressure

2. Pascal