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:
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