The SI unit of potential difference
(ohm, volt, ampere, coulomb)

S.I. unit of potential gradient is

Volt is the SI unit of (potential difference, current, resistance, charge)

Potential Difference||Ohm's Law

The unit for measuring potential difference is:

What is the SI unit of potential gradient?

In a series L-R circuit, connected with a sinusoidal ac source, the maximum potential difference acrosssd L and R are respectively 3 volts and 4 volts At the same instant, the magnitude of the potential difference in volt, across the ac source will be

A resistance of 6 ohms is connected in series with another resistance of 4 ohms. A potential difference of 20 volts is applied across the combination. Calculate the current through the circuit and potential difference across the 6 ohm resistance.