Question

If an electric iron draws a current of 4 A when connected to a 220 V mains, then its resistance must be:

• A. 50
• B. 45
• C. 55
• D. none of these

Answer 1

The correct option is C 55

$V=I\times R$
given , $I=4$ ampere , $V=220$ volts
therefore, $R=55$ ohm