A circular coil of radius 0.1 m has 80 turns of wire. If the magnetic field through the coil increases from 0 to 2 tesla in 0.4 sec and the coil is connected to a 11 ohm resistor, what is the current (in A) flow through the resistor during the 0.4 sec?

A circular coil of radius 0.1 m has 80 turns of wire. If the magnetic

1.	A circular coil of radius 0.1 m has 80 turns of wire. If the magnetic field through the coil increases from 0 to 2 tesla in 0.4 sec and the coil is connected to a 11 ohm resistor, what is the current (in A) flow through the resistor during the 0.4 sec?
Answer» (8/7) (7/8) 8 7 Solution :`\|epsi\|=N (dphi)/(dt) = NA(dB)/(dt) = 80 xx 22/7 xx (0.1)^2 ((2.0)/(0.4))` `I = (\|epsi\|)/(R ) = 80 xx 22/7 xx ((0.1)^2 xx 5)/(11) = 8/7 A`

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A circular coil of radius 0.1 m has 80 turns of wire. If the magnetic field through the coil increases from 0 to 2 tesla in 0.4 sec and the coil is connected to a 11 ohm resistor, what is the current (in A) flow through the resistor during the 0.4 sec?

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