In the a.c circuit above, the current value is
...
In the a.c circuit above, the current value is
A.
0.58 A
B.
3.00 A
C.
4.00 A
D.
6.67 A
Correct answer is C
Impedance Z =
√ R2 x X2
=
√ 302 x 402
∴Z =
√ 2500 = 50W
But current I = V/Z = 200/50 = 4.00 A