One hundred turns of insulated copper wire are wrapped around awooden cylindrica

Question

One hundred turns of insulated copper wire are wrapped around awooden cylindrical core of cross-sectional area1.00×10-3m2. The twoterminals are connected to a resistor. The total resistance in thecircuit is 13.0 . If an externally applied uniformlongitudinal magnetic field in the core changes from 1.80T in one direction to 1.80 T in the oppositedirection, how much charge flows through the circuit (inCoulombs)?

N = 100
A = 1.00e-3 m2
Req = 13.0
Bf = 1.80 T
Bi = -1.80 T
q = ?
= BavAcos = [1.80 T -(-1.80 T)](1.00e-3 m2)cos....?
= -N( B / t)
= IR

I'm not sure how to get charge from what's given. And is there anangle to worry about or is it just equal to 1? Will ratelifesaver! Thanks!

Explanation / Answer

NVM I GOT IT.

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