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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