Find the total resistance in the circuit.

If the resistors 5Omega , 10Omega and 30Omega are connected in parallel to battery of 12 V, find the effective resistance in the circuit. Calculate the total current and current in each resistor.

Find the total current in the circuit when the key K_(2) is (i) open (ii) closed.

Choose correct alternative. A rheostat is used A. to bring on a known change of resistance in the circuit to alter the current B. to continuously change the resistance in any arbitrary manner and there by alter the current C. to make and break the circuit at any instant D. neither to alter the resistance nor the current

Resistors having resistances of 8 Omega , 6 Omega and 12 Omega are connected in parallel. What is the effective resistance in the circuit?

Three resistors having resistances of 15 Omega , 3 Omega and 4 Omega are connected in series. What is the effective resistance in the circuit?

Resistors having resistances of 15 Omega , 20 Omega and 10 Omega are connected in parallel. What is the effective resistance in the circuit?

Three resistors having resistances of 12 Omega , 9 Omega , 4 Omega and 3 Omega are connected in series. What is the effective resistance in the circuit?

If three resistors 15Omega , 3Omega and 4 Omega each are connected in series, what is the effective resistance in the circuit?

Find the total resistance and current in the circuit.