Two electric circuits $I$ and $II$ are shown in the figure.
$(i)$ Which of the two circuits has more resistance?
$(ii)$ Through which circuit does more current pass?
$(iii)$ In which circuit is the potential difference across each resistor equal?

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(N/A) $(i)$ The net resistance of a series combination of resistors is greater than the net resistance of a parallel combination of resistors. Therefore,the resistance of circuit $I$ is greater than the resistance of circuit $II$.
$(ii)$ Since current is inversely proportional to resistance for the same potential difference $(I = V/R)$,the current in circuit $II$ is greater than the current in circuit $I$.
$(iii)$ In a parallel circuit,the potential difference across each resistor is equal. Therefore,the potential difference across each resistor in circuit $II$ is equal.

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