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zorro
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Homework Statement
2 parallel long, straight conductors lie on a smooth plane surface. 2 other parallel conductors rest on them at right angles so as to form a square of side 'a' initially. A uniform magnetic field B exists at right angles to the plane containing the conductors. Now they start moving out with constant velocity v
a)Will the induced e.m.f. be time dependent?
b)Will the current be time dependent?
The Attempt at a Solution
The change in flux through the loop at any time 't' is given by
dΦ/dt = B x a x dx/dt where x is the length of the conductor inside the magnetic field.
so E = -Badx/dt = -Bav
As velocity is constant (time independent), the e.m.f. is time independent.
The current induced = -Bav/R which is also time independent.
The answer does not exactly match this