A potential diff. of 2 V is applied to a coil of resistance 2 ohm and inductance 2 H. What is the current after 1 second?
a) 0.732 A
b)0.632 A
c)0.932 A
d)0.693 A
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1 Answers
Asish Mahapatra
·2010-01-31 21:27:28
time const = L/R = 1sec
So after 1 sec, I = 0.63 I0 = 0.63 * 1 = 0.63 A
(b)