An electric current passes through a circuit containing two wires of the same material connected in parallel. If the lengths of the wires are in the ratio of ${\rm{4/3}}$ and radius of the wires are in the ratio of ${\rm{2/3}}$, then the ratio of the current passing through the wires will be

NEET UG PHYSICS MCQ: CURRENT ELECTRICITY

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An electric current passes through a circuit containing two wires of the same material connected in parallel. If the lengths of the wires are in the ratio of

\mathrm{4/3}

and radius of the wires are in the ratio of

\mathrm{2/3}

, then the ratio of the current passing through the wires will be

View answer and explanation

Correct option: B

\mathrm{1/3}

Option B (

\mathrm{1/3}

) is correct because the ratio of currents is inversely proportional to the ratio of resistances, which depends on length and radius.

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\mathrm{is}\,\,\mathrm{/}\,\,\mathrm{are}