A. Potentiometer measures the potential difference more accurately than a voltmeter, because the potentiometer a. does not draw current from external circuit. b. has a wire of high resistance. c. draws a heavy current from external circuit. d. has a wire of low resistance. B. With the help of a diagram explain the principle of a potentiometer.

A. Potentiometer measures the potential difference more accurately tha

1.	A. Potentiometer measures the potential difference more accurately than a voltmeter, because the potentiometer a. does not draw current from external circuit. b. has a wire of high resistance. c. draws a heavy current from external circuit. d. has a wire of low resistance. B. With the help of a diagram explain the principle of a potentiometer.
Answer» It measure POTENTIAL in the OPEN CIRCUIT. It uses sensitive galvanometer for null detection. It uses high RESISTANCE potentiometer wire It measures potential in the closed circuit. ANSWER :A

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