1.

An e.m.f.\[E=4\cos (1000t)\] volt  is applied to an LR-circuit of inductance 3 mH and resistance 4 ohms. The amplitude of current in the circuit is   [MP PMT 1997]

A.   \[\frac{4}{\sqrt{7}}A\]     
B.   1.0 A
C.   \[\frac{4}{7}A\] 
D.   0.8 A
Answer» E.


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