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When an AC source of e.m.f. E = Eo sin (...

When an AC source of e.m.f. E = Eo sin (1001) is connected across a circuit, the phase difference between the e.m.f. E and the current / in the circuit is observed to be 7/4, as shown in the Fig. If the circuit consists possibly only of R-C or R-L or L-C in series, what will be the relation between the two elements of the circuit? (a) R = 1 k2, C = 10 uF (b) R = 1 k2, C = 1 uF (c) R = 1 k2, L = 10 H (d) R = 1 kg, L = 1 H

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