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Physics-

General

Easy

Question

Figure shows two parallel wires separated by a distance of 4.0 cm and carrying equal currents of 10 A along opposite directions.

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

$0.67 \times 10^{- 4} T$
$2.7 \times 10^{- 4} T$
$1.0 \times 10^{- 5} T$
$2.0 \times 10^{- 4} T$

The correct answer is: $2.7 cross times 10 to the power of negative 4 end exponent text end text T$

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parallel

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