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Physics - Magnetism Question with Solution | TestHub

PhysicsMagnetismMagnetic ForceEasy2 minQB

PhysicsEasynumerical

Two $10 cm$ long, straight wires, each carrying a current of $5 A$ are kept parallel to each other. If each wire experienced a force of $10^{- 5} N$ , then separation between the wires is _____ $cm .$

Answer:

5.00

Solution:

Given: $F = 10^{- 5} N$

Force between wires $\frac{F}{l} = \frac{μ_{0} i_{1} i_{2}}{2 π d}$ , where, $d$ is separation between them.

$\Rightarrow \frac{10^{- 5}}{0.1} = \frac{2 \times 10^{- 7} \times 25}{d}$

$\Rightarrow d = 50 \times 10^{- 3} m = 5 cm$

Stream:JEESubject:PhysicsTopic:MagnetismSubtopic:Magnetic Force

⏱ 2mℹ️ Source: QB

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