A 8N force acts on a rectangular conductor 20 cm

CBSE Class 10 CBSE Class 10 Science
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1

A 8N force acts on a rectangular conductor 20 cm long placed perpendicular
to a magnetic field. Determine the magnetic field induction if the current in the conductor is 40 A.

2

Force on conductor F = 8N

Length of conductor l = 20 cm = 20/100 m
Current in the conductor I = 40 A
Magnetic field induction B = ?
F = BIl
B=F/Il
B = 8 X 100/40 X 20 = 1 tesla