A 4Ω coil and a 2 Ω coil are connected in parallel. What is their combined resistance? A total current of 3A passes through the coils. What current passes through the 2Ω coil?

The coils of the resistors 4 ohm and 2 ohm are connected in parallel. Therefore



R=4/3 ohm


Total current =3 A (given)


Potential difference V= 3×4/3=4V


Now current through 2Ω coil= V/2 =4/2 = 2A


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