The potential difference between two ends of an electric bulb is reduced 2%. What should be the change of dissipated power?

The potential differnce between the two ends of an electric lamp is decrased by 1 % . Neglecting the change in its resistance , calculate the percentage increase or decrease in the power of the lamp .

What do mean by the potential difference between two points in an electric field?

The potential difference between two points in an electric field does not depend on the path connecting them. Explain.

A cell of emf 1.4V and internal resistance 2 Omega is connected in series with a resistance of 100 Omega and an ammeter. The resistance of the ammeter is 4/3 Omega .To measure the potential difference between the two ends of the resistance a voltmeter is connected IF the reading of the voltmeter is 1.10V, what will be its error?

The potential difference between the two ends of a conducting coil is made twice,but it is seen that the current strength is not doubled.Explain the reason.

A cell of emf 1.4V and internal resistance 2 Omega is connected in series with a resistance of 100 Omega and an ammeter. The resistance of the ammeter is 4/3 Omega .To measure the potential difference between the two ends of the resistance a voltmeter is connected IF the reading of the ammter is 0.02 A.what is the resistance of the voltmeter?

Mention two differences Between magnetic lines of force and electric lines of force.

What is the main difference between wave emitted by an electric bulb and that associated with a tiny particle moving with very high speed?

If the potential difference between the two ends of a conductor a 15 volt for which current flowing through it is 3A, then find the resistance of the conductor.

Two capacitors of capacitances 20muF and 60muF are connected in series. IF the potential difference between the two ends of the combination is 40 volt, calculate the terminal potential difference pf each capacitor.