KCET · Physics · Current Electricity
The accurate measurement of emf can be obtained using
- A multimeter
- B voltmeter
- C voltameter
- D potentiometer
Answer & Solution
Correct Answer
(D) potentiometer
Step-by-step Solution
Detailed explanation
In a potentiometer there is no current drawn from the cell whose emf is to be measured whereas a voltmeter always draws some current from the cell. Hence, the emf of a cell can be measured accurately using a potentiometer.
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