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Physics-

General

Easy

Question

Some equipotential surfaces of the magnetic scalar potential are shown in the figure. Magnetic field at a point in the region is

$10^{- 4} T$
$2 \times 10^{- 4} T$
$0.5 \times 10^{- 4} T$
None of these

The correct answer is: $2 cross times 10 to the power of negative 4 end exponent T$

$vertical line B vertical line equals fraction numerator capital delta V over denominator capital delta x end fraction equals fraction numerator 0.1 cross times 1 0 to the power of negative 4 end exponent over denominator 0.1 sin invisible function application 3 0 to the power of o end exponent end fraction equals 2 cross times 1 0 to the power of negative 4 end exponent T$

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