Select Board & Class



Question 13:

A hot plate of an electric oven connected to a 220 V line has two resistance coils A and B, each of 24 Ω resistances, which may be used separately, in series, or in parallel. What are the currents in the three cases?


Supply voltage, V = 220 V

Resistance of one coil, R =

(i) Coils are used separately

According to Ohm’s law,


is the current flowing through the coil

Therefore, 9.16 A current will flow through the coil when u…

To view the solution to this question please

What are you looking for?