MAHARASHTRA Class 9: Effective Resistance Videos | Electricity

When resistors are connected in parallel, the potential difference across each resistor is the same and the current across each resistor is different.

When resistors R1 and R2 are connected in parallel, the resultant resistance (R) is.

1/R = 1/R1 + 1/R2

1/R = (R1 + R2)/(R1 x R2)

R = (R1 x R2)/(R1 + R2)

When three resistors R1, R2 and R3 are connected in parallel, the total current flowing through the circuit is I1 + I2 + I3.