Two resistors of resistances `25 Omega` and `75 Omega` are connected in series across a source of 120V. Calculate the current through them and potential drop across each resistor?

If the series combination of 3 resistors of values 1 ohm, 2 ohm and 3 ohm are connected to a battery of e.m.f. 12V and negligible internal resistance, obtain the potential drop across each resistor:

If the combination is connected to a battery of emf 12V and negligible internal resistanice,obtain the potential drop across each resistor.

Three resistors 1Omega , 2Omega and 3Omega are combined in series. 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 potential difference across each capacitor, if the combination is connected to a 120V supply?

10 resistors of 2 Omega each are connected in parellel. Calculate the effective resistance.