Physics
Potential at a point is said to be 1 volt, when …………… of work is done in bringing 1 coulomb charge from infinity to that point.
- 1 joule
- 5 joule
- 10 joule
- 1 erg
Related Questions
If W joule of work is done in bringing a test charge Q coulomb from infinity to the point P, then electric potential V at point P is :
- V = WQ
- V = Q/W
- V = W/Q
- none of the above
The potential difference between two points in an electric circuit is measured by a …………… which is connected in …………… with the circuit.
- voltmeter, series
- voltmeter, parallel
- ammeter, series
- ammeter, parallel
The obstruction offered to the flow of current by a wire is called :
- current
- potential
- resistance
- charge