A square wire loop with 2.00 m sides is perpendicular to a uniform magnetic field, with half the area of the loop in the field as shown in the figure. The loop contains an ideal battery with emf ɛ = 20 V If the magnitude of the field varies with time according to B = 0.042t + 0.87t with B in teslas and t in seconds, what are (a) the net emf in the circuit and (b) the direction of the (net) current around the loop? --L---LL---

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Chapter1: Units, Trigonometry. And Vectors
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A square wire loop with 2.00 m sides is perpendicular to a uniform magnetic field, with half the area of the
loop in the field as shown in the figure. The loop contains an ideal battery with emf ɛ = 20 V
If the magnitude of the field varies with time according to B =
0.042t + 0.87t with B in teslas and t in seconds, what are
(a) the net emf in the circuit and
(b) the direction of the (net) current around the loop?
--L---LL---
Transcribed Image Text:A square wire loop with 2.00 m sides is perpendicular to a uniform magnetic field, with half the area of the loop in the field as shown in the figure. The loop contains an ideal battery with emf ɛ = 20 V If the magnitude of the field varies with time according to B = 0.042t + 0.87t with B in teslas and t in seconds, what are (a) the net emf in the circuit and (b) the direction of the (net) current around the loop? --L---LL---
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