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प्रश्न
Write two factors by which current sensitivity of a potentiometer can be increased.
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उत्तर
The smallest potential difference that can be measured by potentiometer is called sensitivity of potentiometer. It can be increased by
(i) increasing the length of the wire
(ii) decreasing the current in the wire using a rheostat
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संबंधित प्रश्न
Accuracy of potentiometer can be easily increased by ______.
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Select the WRONG statement:
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In a potentiometer arrangement, a cell of emf 1.20 V gives a balance point at 36 cm length of wire. This cell is now replaced by another cell of emf 1.80 V. The difference in balancing length of potentiometer wire in above conditions will be ______ cm.
In balanced meter bridge, the resistance of bridge wire is 0.1 Ω cm. Unknown resistance X is connected in left gap and 6 Ω in right gap, null point divides the wire in the ratio 2:3. Find the current drawn from the battery of 5 V having negligible resistance.
