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