A) \[2.2\,\,mA\]
B) \[2.2\sqrt{2}mA\]
C) \[\frac{2.2}{\sqrt{2}}mA\]
D) None of these
Correct Answer: A
Solution :
Effective current is the rms value. Here,\[220\,\,V\]is the labelled value of\[AC\]which is also the rms value. Hence, \[{{I}_{rms}}=\frac{{{E}_{rms}}}{R}\] \[{{I}_{rms}}=\frac{220}{100\times {{10}^{3}}}\] \[{{I}_{rms}}=2.2\,\,mA\]
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