Page 11 - CHAPTER-1 (Electricity)

CHAPTER 1

ELECTRICITY

• The electric potential difference between any couple of points can

be defined as 1 volt if 1 joule of work is done in displacing 1 coulomb

of electric charge from one point to another point.

• Thus,

1 joule 1J
-1
1 volt= ⟹1V= =1J/C=1JC
1 coulomb 1C
Smaller units of electric potential,

-6
-3
1mV=10 V,1μV=10 V
• Larger units of electric potential,

3
6
• 1kV=10 V,1MV=10 V

Did you know?

The electric eel can deliver a shock of up to 600V.

Science vocab :

Current , Ampere, Potential, Scalar

Voltmeter: The electric potential

difference between two points in a

circuit is measured using a device called
a voltmeter. It is a high resistance device

which is always connected in parallel

with the component(s) through which
potential difference is to be measured.
Fig 5:

9