Advertisements
Advertisements
प्रश्न
What do you understand by the term "potential difference"?
उत्तर
The potential difference between two points in an electric circuit is equal to the amount of work done in moving a unit charge from one point to another point.
`"Potential difference(V)"="Work done (W)"/"Quntity of charge moved (Q)"`
APPEARS IN
संबंधित प्रश्न
State whether the resistivity of a wire changes with the change in the thickness of the wire.
By what other name is the unit joule/coulomb called?
Calculate the work done in moving a charge of 4 coulombs from a point at 220 volts to another point at 230 volts.
How is a voltmeter connected in the circuit to measure the potential difference between two points? Explain with the help of a diagram.
A potential difference of 20 volts is applied across the ends of a resistance of 5 ohms. What current will flow in the resistance?
A current of 5 amperes flows through a wire whose ends are at a potential difference of 3 volts. Calculate the resistance of the wire.
State the S.I. unit of electric potential.
Which of the following represents voltage?
A negative charge will move from ______ to ______ potential.
______ is work done per unit charge.