Physics · Electromagnetic Induction

A 1 m long metal rod completing a closed loop circuit is perpendicular to a magnetic field of 0.10 T. If the resistance of the total circuit is 2 Ω, then the force needed to move the rod with a constant speed (v) of 1.5 m/s to the right is ________ N.

Verified Solution4 OptionsUpdated: October 2026👁️1 View

17.5 × 10-3✓
25.7 × 10-2
35.7 × 10-3
47.5 × 10-2

Correct answer

7.5 × 10-3

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A 1 m long metal rod completing a closed loop circuit is perpendicular to a magnetic field of 0.10 T. If the resistance of the total circuit is 2 Ω, then the force needed to move the rod with a constant speed (v) of 1.5 m/s to the right is ________ N.

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A 1 m long metal rod completing a closed loop circuit is perpendicular to a magnetic field of 0.10 T. If the resistance of the total circuit is 2 Ω, then the force needed to move the rod with a constant speed (v) of 1.5 m/s to the right is ________ N.

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