The potentiometer is superior to a voltmeter for measuring a potential difference because |
|
a) |
The resistance of the voltmeter |
b) |
The potentiometer does not draw any current from the source of the potential |
c) |
The sensitivity of potentiometer is better than that of the voltmeter |
d) |
The voltmeter has a dial and of small size |
The potentiometer is superior to a voltmeter for measuring a potential difference because |
|
a) |
The resistance of the voltmeter |
b) |
The potentiometer does not draw any current from the source of the potential |
c) |
The sensitivity of potentiometer is better than that of the voltmeter |
d) |
The voltmeter has a dial and of small size |
(b) Potentiometer is based on null deflection |