Question

A $100\Omega$. resistor is connected to a $220V$, $50Hz$ ac supply. The rms value of current in the circuit is

• A. $1.56A$
• B. $1.56mA$
• C. $2.2A$
• D. $2.2mA$

Answer 1

Answer: (C)

Here, $R=100\Omega$,
$V_{rms}=220V$,
$\upsilon =50Hz$
$\therefore I_{rms}=\frac{V_{rms}}{R}$
$=\frac{220}{100}$
$=2.2A$