Page 14 - CHAPTER-1 (Electricity)

CHAPTER 1

ELECTRICITY

Mental floss!

The propagation of current is almost at the speed of light and

involves an electromagnetic process. It is due to this reason that
the electric bulb glows immediately when the switch is on.

Checkpoint-2

1. 1 volt is equal to

(A) 1 joule per coulomb (B) 1 joule

(C) 1 newton per coulomb (D) 1 coulomb

per meter

2. 1 Vm –1 equals

-2
(A) 1 NC (B) 1 NC
-1
(C) 1 Jm (D) I Jm
-1
-2
3. The reciprocal of resistance is conductance. If the unit of

resistance is the Ohm, the unit of conductance will be -

(A) ohm (B) volt

(C) mho (D) ohm metre -1

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