
$V = IR$
Substitute the values,
$V =\left(\frac{12}{300}\right) 200$
$=8 V$
The expression of charge is given by,
$q = cV$
$=1 \times 8$
$=8 nC$
The values of resistance and tolerance, respectively, are :

Reason : The current flows towards the point of the higher potential, as it does in such a circuit from the negative to the positive terminal.

