Why high resistance is used in a potentiometer exp????
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Explanation:
A potentiometer is a device which works on the principal of balancing lengths that is it has a very few range of length of wires at which then whole circuit can be balanced. A very high resistance is connected in series first so a to a very minute current flow through the circuit.
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Explanation:
High resistance is connected before connecting galvanometer in a potentiometer experiment. Since galvanometer is highly sensitive, by such a resistance, only a feeble current flows and this protects it from getting damaged.
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