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Physics-

General

Easy

Question

OABC is a current carrying square loop an electron is projected from the centre of loop along its diagonal AC as shown. Unit vector in the direction of initial acceleration will be

$\hat{k}$
$- (\frac{\hat{i} + \hat{j}}{\sqrt{2}})$
$- \hat{k}$
$\frac{\hat{i} + \hat{j}}{\sqrt{2}}$

The correct answer is: $negative open parentheses fraction numerator stack i with ˆ on top plus stack j with ˆ on top over denominator square root of 2 end fraction close parentheses$

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Find the magnitude of the magnetic field B at $A subscript 3 end subscript$ is

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