An A.C. voltage V=5cos⁡1000t V is applied to an L-R series circuit of inductance 3 mH and resistance 4 Ω. The value of the maximum current in the…

Question

An A.C. voltage V=5cos⁡1000t V is applied to an L-R series circuit of inductance 3 mH and resistance 4 Ω. The value of the maximum current in the circuit is ______ A.

MARKS Content Team · Accepted Answer

Correct answer: 1. V=5cos⁡1000t V V=V_0cos⁡ωt V_0=5 V ω=1000 rad s^(-1) L=3×10^(-3) H, R= 4 Ω Maximum current I_0=V_0Z I_0=(5√(ω^2L^2+R^2)=5)/5=1 A

An A.C. voltage $V = 5 \cos (1000 t) V$ is applied to an $L - R$ series circuit of inductance $3 mH$ and resistance $4 Ω$ . The value of the maximum current in the circuit is ______ $A$ .

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