In the diagram above, determine the r.m.s current
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In the diagram above, determine the r.m.s current
A.
31A
B.
48A
C.
60A
D.
80A
Correct answer is B
Ir.m.s = Vr.m.s/Z
But Z =
√ R2 + XL2
=
√ 42 + 32
=
√ 16 + 9
=
√ 25
∴Ir.m.s = 240/5
= 48.0A