Page 54 - CHAPTER-1 (Electricity)

CHAPTER 1

ELECTRICITY

Objective Type Questions.

1. Coulomb is the assigned SI unit of:

(a) current (b) charge

(c) potential difference (d) resistance

2. When an electric current is passed, electrons move from:

(a) high potential to low potential.

(b) low potential to high potential.

(c) in the direction of the current.

(d) against the direction of the current.

3. Electric potential is a:

(a) scalar

(b) vector

(c) neither scalar nor vector

(d) sometimes scalar and sometimes vector

4. 1 mV is equal to:

(a) 10 V (b) 1000 V

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(c) 10 V (d) 10 V
5. 100 J of heat is produced every second in a 4Ω resistor. The

potential drop across the resistor is:

(a) 30 volt (b) 10 volt

(c) 20 volt (d) 25 volt

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