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प्रश्न
State the principle of working of a potentiometer.
उत्तर
Principle of potentiometer: When a constant current is passed through a wire of uniform cross-sectional area, the potential drop across any portion of the wire is directly proportional to the length of that portion.
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संबंधित प्रश्न
Find the equivalent resistance between the terminals of A and B in the network shown in the figure below given that the resistance of each resistor is 10 ohm.
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Specific resistance of a conductor increase with.
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