When is the potential difference between two points said to be $1$ volt?
- AWhen $1$ joule of work is done to move $1$ coulomb of charge.
- BWhen $1$ coulomb of work is done to move $1$ joule of charge.
- CWhen $1$ ampere of current flows for $1$ second.
- DWhen $1$ watt of power is consumed for $1$ second.
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$(a)$ Define potential difference between two points in a conductor.
$(b)$ Name the instrument used to measure the potential difference in a circuit. How is it connected?
$(c)$ $A$ current of $2 \, A$ passes through a circuit for $1$ minute. If the potential difference between the terminals of the circuit is $3 \, V$, what is the work done in transferring the charges?
$(b)$ Name the instrument used to measure the potential difference in a circuit. How is it connected?
$(c)$ $A$ current of $2 \, A$ passes through a circuit for $1$ minute. If the potential difference between the terminals of the circuit is $3 \, V$, what is the work done in transferring the charges?
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