Electrostatic force

Q.

Define electrostatic force.

Q. When a positively charged body is brought near to a neutral body, the in the neutral body get aligned towards the positively charged body.

1. protons
2. electrons
3. neutrons

Q.

Explain the following
(a) Gravitational Force
(b) Electrostatic Force
(c) Magnetic Force
(d) Muscular Force

Q.

Substances which allow electric charge to flow through them are called---------------------

Q.

If a charged plastic straw is brought near another uncharged plastic straw, what will happen?

Q. When a charged glass rod rubbed with silk cloth is brought near a negatively charged plastic straw, there is an attraction between the two. What can be said about the glass rod?

1. Positive

2. Negative

3. Neutral

4. The charge on the glass rod cannot be determined.

Q. If the total charge on a pair of objects that have been rubbed together is zero ?Please explain

Q.

Define the term conductor.

Q.

Define conductors.

Q.

Which of the following is a conductor of electricity?

1. Glass

2. Wood

3. Ebonite

4. Graphite

Q.

Is electrostatic a force?

Q. In an experiment, a charged object attracts another object. What can be understood from this?

1. The attracted object must be oppositely charged.

2. The attracted object must be similarly charged.

3. The attracted object must be uncharged.

4. The nature of charges can't be predicted.

Q.

Name two examples of non-contact forces.

Q.

A glass rod ‘P’ is observed to be attracting an ebonite rod ‘Q’, then

1. ‘P’ and ‘Q’ are uncharged bodies

2. both ‘P’ and ‘Q’ are charged with identical charge

3. both ‘P’ and ‘Q’ are charged oppositely

4. either ‘P’ is charged, or ‘Q’ is charged. If both are charged, they are opposite in nature.

Q. Which of the following is/are correct explanation of the diagram shown below?

1. Like charges attract each other.
2. Unlike charges repel each other.
3. Like charges repel each other.
4. Unlike charges attract each other.

Q. Which of the following is the correct explanation of the diagram shown below? (+) and (-) indicate positive and negative charges respectively.

1. Like charges attract each other while unlike charges repel.
2. Unlike charges repel each other.
3. Charges do not interact with each other.
4. Like charges repel each other while unlike charges attract.

Q. Two unlike charges:

1. Attract
2. Repel
3. May attract or repel
4. Neither attract nor repel

Q.

What do you understand by conductors?

Q. Does gravitational force depend on the presence of other bodies?
What is the charged particle associated with electromagnetic waves?

Q. The force of attraction or repulsion between two charged bodies depends on the distance between them.

1. False
2. True

Q. Two balls with like charges are suspended freely as shown in the figure. Which of the following depicts the behavior of the balls?

1. attract each other

2. repel each other

3. either attract or repel

4. neither attract nor repel

Q. The electrostatic force between two subatomic particles is than/as the gravitational force between them.

1. stronger
2. weaker
3. equally strong

Q.

Two inflated balloons are rubbed with a woollen cloth and are brought close to each other. They repel each other because the nature of charge on one balloon is opposite from the other.

1. True

2. False

Q. The electrostatic force between an electron and a proton is:

1. Atttractive
2. Zero
3. Repulsive
4. Undefined