Alternating Current

Question: 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

1) $\frac{4}{{\sqrt 7 }}A$

2) $1.0 A$

3) $\frac{4}{7}A$

4) $0.8 A$

Solution:

Explanation: No Explanation

AC circuits

Rate this question:

★ ★ ★ ★ ★

Average rating: (0 votes)