Select the letter of the correct answer.

1. The coulomb's force between the 2-point charges 10C and 5C placed at a distance of 150cm is

a. 0.2N b. 0.5N c. 2N d. 10N

2. The value of k in coulomb's law depends upon

a. magnitude of charges b. medium between two charges c. distance between charges d. none of the above

3. The property of material due to which it attracts or repels other objects is

a. friction b. current c. velocity d. charge

4. Plastic rod rubbed with fur and glass rod rubbed with silk

a. repels each other b. attracts each other c. mix up with each other d. none of the above

5. As per Coulomb's law, the force of attraction or repulsion between two point charges is inversely proportional to the

a. sum of the magnitude of charges b. cube of the distance c. square of the distance between them d. product of the magnitude of charges

6. A negative charge a. repels neutral charge b. repels negative charge

c. attracts neutral charge d. repels positive charge

7. If 2 bodies are oppositely charged with 400C and 200C, the distance between them in the air is 0.5 m. The force between

the bodies should be

a. 2880N b. 3000N c. 1850N d. 3250N

8. The fundamental law of electric force between two stationary charged particles is established by

a. Newton b. Coulomb c. Hooke d. Ohm

9. By using electroscope, if the body is negatively charged then due to electrostatic induction, then on the leaves there will be appear

a. negative charge b. positive charge c. both positive and negative charge d. no charge

10. If we bring charged plastic rod near-neutral aluminum rod, then rods will

a. repels each other b. remain their position c. attracts each other d. exchange charges