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A 1Ω resistance in series with an ammeter is balanced by 75 cm of potentiometer wire

A 1Ω resistance in series with an ammeter is balanced by 75 cm of potentiometer wire. A standard cell of emf 1.02 V is balanced by 50 cm. The ammeter shows a reading of 1.5A. Then, the error in ammeter reading is

Options

(a) 0.03A
(b) 3A
(c) 1.3A
(d) 0.3A

Correct Answer:

0.03A

Explanation:

No explanation available. Be the first to write the explanation for this question by commenting below.

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