# Physics -HELP

posted by Jake

A coil with 337 turns of wire, a total resistance
of 47 Ω, and a cross-sectional area of 0.35 m2
is positioned with its plane perpendicular to
the field of a powerful electromagnet.
What average current is induced in the coil
during the 0.30 s that the magnetic field drops
from 1.9 T to 0.0 T?
Answer in units of A.

1. bobpursley

E=N*Area*dB/dt=337*.35*1.9/.3 volts

Faraday's law.
Flux here is area*B
and d flux/dt= area*dB/dt

2. Jake

A coil with 337 turns of wire, a total resistance
of 47 Ω, and a cross-sectional area of 0.35 m2
is positioned with its plane perpendicular to
the field of a powerful electromagnet.
What average current is induced in the coil
during the 0.30 s that the magnetic field drops
from 1.9 T to 0.0 T?
Answer in units of A.
E=N*Area*dB/dt=337*.35*1.9/.3 volts

Faraday's law.
Flux here is area*B
and d flux/dt= area*dB/dt
I tried this and still got it wrong

3. bobpursley

sorry, I didn't read close enought. It asks for CURRENT

Current= EMF/resistance

4. Jake

Do we have to find EMF?

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