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This one is really getting to me.

Find the current through section PQ (the middle column of the circuit) of length a, a =.65 m. The circuit is located in a magnetic field whose magnitude varies with time according to the expression B(t) = .001t. Assume the resistance per length of wire is .1 ohm/m.

Diagram:

key: I: piece of circuit

X: direction of B field

-----------P

IIIIIIIIIIIIIIIIIIIIIIIII

I X X X X I X X X I

I X X X X I X X X I a

I X X X X I X X X I

IIIIIIIIIIIIIIIIIIIIIIIII

-----2a---Q----a---

I started by using Faraday's law of inductance,

Emf = -d Phi_m/dt

but Im not exactly sure how this will help me. I foresee a kirchoff analysis, but I'll be damned if I can figure out how I arrive there

Find the current through section PQ (the middle column of the circuit) of length a, a =.65 m. The circuit is located in a magnetic field whose magnitude varies with time according to the expression B(t) = .001t. Assume the resistance per length of wire is .1 ohm/m.

Diagram:

key: I: piece of circuit

X: direction of B field

-----------P

IIIIIIIIIIIIIIIIIIIIIIIII

I X X X X I X X X I

I X X X X I X X X I a

I X X X X I X X X I

IIIIIIIIIIIIIIIIIIIIIIIII

-----2a---Q----a---

I started by using Faraday's law of inductance,

Emf = -d Phi_m/dt

but Im not exactly sure how this will help me. I foresee a kirchoff analysis, but I'll be damned if I can figure out how I arrive there

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