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A circular coil of 20 hours and radius 1...

A circular coil of 20 hours and radius 10cm is placed in an uniform magnetic field of `0.17` normal to the plane of the coil if the current in the coil is `5.0A`. What is the
totaltorque on the coil.

Text Solution

Verified by Experts

Number of turns, `N = 20`
Radius of circular coil , ` r = 10 cm = 0.1 m`
Magnetic field , `B = 0.1 ` T
Angle between area vector and magnetic field, `theta = 0^(@)`
Current , `I = 5.0 A " " (A = pi r^(2) = "Area")`
Torque on the coil , `t = NABI sin theta `
` = 20 xx 5 xx pi (0.1)^(2) xx 0.1 sin 0^(@)`
` = 0 `
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