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A small conducting circular ring of area 2 mm2 is placed coplanerly with a long straight current carrying wire at a distance of 10 cm from it. It current through the wire decreases from 4 A to zero in 0.1s, the average value of emf induced in the ring.A. `1.6 xx 10^(-10) V`B. `2.0 xx 10^(-10) V`C. `3.2 xx 10^(-10) V`D. Zero. |
Answer» Correct Answer - A |
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