The accurate measurement of emf can be obtained using |
|||||||
a) |
Multimeter |
b) |
Voltmeter |
c) |
Voltameter |
d) |
Potentiometer |
The accurate measurement of emf can be obtained using |
|||||||
a) |
Multimeter |
b) |
Voltmeter |
c) |
Voltameter |
d) |
Potentiometer |
(d) For greater sensitivity of meter bridge the resistance (R) taken in the resistance box should be such that the null point is nearly in the middle of the wire. In this position all resistance P, Q, R and S become nearly equal. The emf of cell depends upon the size and area of electrodes. |