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GK Questions with answers on Science: Physics (Electricity) Set I

GK Questions with answers on Science: Physics (Electricity) Set I , in this set you will find repository of 10 Objective Type Questions that will help you to attune and equipped for different competitive examinations as well as academic examinations.
Jun 28, 2016 10:28 IST
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GK Questions with answers on Science: Physics (Electricity) Set I , in this set you will find repository of 10 Objective Type Questions that will help you to attune and equipped for different competitive examinations as well as academic examinations.

1. What is the SI unit of electric charge?

A. Volt

B. Coulomb

C. Ampere

D. ohm

Answer: B

2. How much force does one coulomb of electric charge exerts on an equal charge placed at a distance of one metre from it?

A. 9 * 109 Newton

B. 10 * 109 Newton

C. 9 * 108 Newton

D. 8 * 109 Newton

Answer: A

3. An electron possesses a negative charge of:

A. 16 * 10-19 C

B. 1.60 * 10-19 C

C. 26 * 10-19 C

D. 1.8 * 10-19 C

Answer: B

4. How many electrons taken together make one coulomb?

A. 6.25 * 1018 electrons

B. 3.25 * 1018 electrons

C. 2.25 * 1018 electrons

D. 4.25 * 1018 electrons

Answer: A

5. Which of the following is a conductor of electricity?

A. Silver

B. Copper

C. Aluminium

D. All of the above

Answer: D

6. Substances through which electricity cannot flow are called:

A. Conductors

B. Insulators

C. Wires

D. Battery

Answer: B

7. Which of the following is an insulator?

A. Carbon

B. Rubber

C. Silver

D. Copper

Answer: B

8. What should be present in a substance to make it a conductor of electricity?

A. Strongly held electrons

B. Strongly held protons

C. Free electrons

D. Free protons

Answer: C

9. Which of the following is an example of static electricity?

A. Glass rod rubbed with silk cloth

B. Ebonite rod rubbed with wool

C. Lightening in the sky

D. All of the above

Answer: D

10. What is the work done in moving a unit positive charge from infinity to that point in electric field called?

A. Electric potential

B. Potential difference

C. Electric current

D. Electric circuits

Answer:  A