What is the output of this combination?

Smog is combination of

What is the need of using combination of resistance in electrical circuits? Define equivalent resistance.

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

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

Three capacitors each of capacitance 9pF are connected in series. (a) What is the total capacitance of the combination? (b) What is the potantial difference across each capacitor if the combination is connected to a 120 V supply?

Three capacitors of capacitances 2 pF, 3 pF and 4 pF are connected in parallel (a) What is the total capacitance of the combination? (b) Determine the charge on each capacitor if the combination is connected to a 100 V supply

(a) Three resistors of resistance 2Omega,3Omega and 4Omega are combined in series. What is the total resistance of the combination ? (b) It this combination is connected to a battery of emf 10 V and negligible internal resistance, obtain the potential drop across each resistor.