A current of $\left( {\frac{2}{3}} \right)\,A$ produces a deflection of ${\rm{6}}{{\rm{0}}^0}$ in a tangent galvanometer. The reduction factor is

$\left( {\frac{2}{{\sqrt 3 }}} \right)A$

NEET UG PHYSICS MCQ: MAGNETIC EFFECT OF CURRENT

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Application +4 | -1

A current of

\left( {\frac{2}{3}} \right)\,A

produces a deflection of

\mathrm{6}{\mathrm{0}^0}

in a tangent galvanometer. The reduction factor is

View answer and explanation

Correct option: C

\left( {\frac{2}{3}} \right)A

Option D is correct because the reduction factor in a tangent galvanometer is given by K = I/tanθ, and substituting the given values yields (2/√3) A.

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