500 J of energy is produced each second in a 20 ohm bulb. Find the potential differecne across the bulb.

98 J of heat is produced each second in 2 Omega resistor.Find the potential difference.

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

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.

Draw a circuit diagram of an electric circuit containing a cell, a key, an ammeter, a resistor of 2 ohms in series with a combination of two resistors (4 ohms each) in parallel and a voltmeter across the parallel combination. Will the potential difference across the 2 ohms resistor be the same as that across the parallel combination of 4 ohms resistors? Give reasons.

An air capacitor has an area of 1,000 cm^2 and the two plates are 4 mm apart. It is connected in series with another capacitor having a plate ares of 20 cm^2 , the plates being separated by a dielectric 0.1 mm thick having dielectric constant o 2.5 . If the potential difference across the second capacitor is 100 V, find the voltage applied across the series combination.

Two cells of e.m.f.6V and 12V and internal resisatnce lohm and 2ohm respectively are connecetd in parallel so as to send current in the same direction through an external resistance of 15ohm. calculate current in each branch of the circuit (c) potential difference across the 15 ohm resistor.

Study the following electric circuit and find potential difference across 4Ohm resistor

A body is thrown up with a kinetic energy 100 J. Find the potential energy at the topmost point.