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A step up transformer is connected to an ac mains supply of 220 V to operate at 11000 V, 88 watt. The current in the secondary circuit, ignoring the power loss in the transformer, is
A
8 mA
B
4 mA
C
0.4 A
D
4 A
Detailed Solution
$P=VI\Rightarrow I=\dfrac{88}{11000}=8\times10^{-3}\ A=8$ mA.