Inductive resistance 25 ohm and capacitive resistance 75 ohm are connected across 250 V mains in series. Find the r.m.s. potential difference across inductor and capacitor.

A bulb whose resistance is 10 ohm is connected to a 6 V battery. Calculate the potential difference across the bulb.

In an a.c. circuit, the potential diffeence across an inductance and resistance joined in series is respectively 12 V and 16 V. Find the total potential difference across the circuit.

A coil of negligible resistance and inductance 0.02 henry is connected in series with a wire of zero inductance and resistance 12 ohm. An alternaitng e.m.f of 130 volt and 40 Hz is applied. Calculate the current, potential difference across the resistance and the angle of lag.

The resistance of two conductors in seris is 40 hm and their resistance becomes 7.5 ohm, when connected in parallel. Find the resistance of individual conductors.

A resistance of 20 ohm is connected to a source of alternating current rated 110 V - 50 Hz. Find the r.m.s of current.

Three capacitors each of capacitance 9 pF are connected in series as shown in the figure. What is the potential difference across each capacitor, if the combination is connected to a 120 volt supply?

A resistor of resistance 20 ohm is connected across a potential difference of 20 V for one minute. Calculate the heat produced in the resistor.

State Ohm’s law. Derive the laws of resistance, when they are connected in series

A battery of e.m.f 12 V supplies a current through a oil of resistance 48 ohm. The internal resistance of the battery is 1.2 ohms. A voltmeter of resistance 72 oohm is sued to measure the potential difference across the coil. What value would it show?