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A coil of 800 turns and 50 cm^(2) area m...

A coil of 800 turns and `50 cm^(2)` area makes 10 rps about an axis in its own plane in a magnetic field of 100 gauss perpendicular to this axis. What is the instantaneous induced emf in the coil?

Text Solution

Verified by Experts

`A = 50cm^2 = 50 xx 10^(-4) m^2`
n= 10 rps, N= 800
B = 100 gauss = `100 xx 10^(-4) T = 10^(-2) T`
Now , `epsi = epsi_0 sin omega t = NBA omega sin omega t `
` = 800 xx 10^(-2) xx 50 xx 10^(-4) xx 2pi xx 10 sin (20pi t)`
or `epsi = 2.5 sin (20pi t)` volt
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