Three resistors `2Omega, 4Omega` and `5Omega` are connected in parallel.If the combination is connected to a battery of emf `20 V` and negligible internal resistance, determine the current through each resistor and the total current drawn from the battery.

Three resistor 4 Omega , 6 Omega and 8 Omega , are combined in parallel.If the combination is connected to a battery of emf 25 V and negligible Internal resistance, then determine the current through each resistor and total current drawn from the battery.

Three resistances of 4 Omega,5 Omega and 20 Omega are connected in parallel. Their combined resistance is :

Two resistors of resistances 2 Omega and 6 Omega are connected in parallel. This combination is then connected to a battery of emf 2 V and internal resistance 0.5 Omega . What is the current flowing through the battery ?

Three resistors 2Omega, 4Omega and 5Omega are connected in parallel. What is the total resistance of the combination?

(a) Three resistors 3Omega, 4Omega, and 12Omega are connected in parallel. What is the effective resistance of the combination? (b) If the combination is connected to a battery of emf 6V and internal resistance 0.5Omega , find the current drawn from the battery and terminal potential difference across the battery.

(a) Three resistor 1Omega ,2Omega, and 3Omega are combined in series. What is the total resistance of the ombination ? (b) If the combination is connected to a battery of emf 12 V and negligible internal resistance, obtain the potential drop across each resistor.

Three resistor 4Omega , 6Omega and 8 Omega , are combined in parallel. What is the total resistance of the combination ?

Two heating coils of resistance 10Omega and 20Omega are connected in parallel and connected to a battery of emf 12V and internal resistance 1Omega . The power consumed by them are in the ratio