$(a)$ Define the term 'volt'.
$(b)$ State the relation between work, charge and potential difference for an electric circuit. Calculate the potential difference between the two terminals of a battery, if $100$ joules of work is required to transfer $20$ coulombs of charge from one terminal of the battery to the other.
$(a)$ Define the term 'volt'.
$(b)$ State the relation between work, charge and potential difference for an electric circuit. Calculate the potential difference between the two terminals of a battery, if $100$ joules of work is required to transfer $20$ coulombs of charge from one terminal of the battery to the other.
$(a)$ One volt is the potential difference between two points in a current carrying conductor when $1$ joule of work is done to move a charge of $1$ coulomb from one point to the other.
$(b)$ The relation is $V = W / Q$
Given $W=100 J, Q=20, V=$?
Using the relation $V = W / Q$,
we have $V =100 / 20=5 V$
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