In the given circuit of below the cell P has an e.m.f. 1.5V and an unknown internal resistance r while the cell Q has an e.m.f. 2.0V …
Jamb 1979 In the given circuit of below the cell P has an e.m.f. 1.5V and an unknown internal resistance r while the cell Q has an e.m.f. 2.0V and an internal resistance of 1ohm. If the ammeter reads 50mA, then r is equal to A. 0.5 ohm B.0.62 ohm […]
