A square wire loop with 1.7 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 = 17 V. If the magnitude of the field varies with time according to B = 0.035 T - (0.90 T/s)t, 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?
A square wire loop with 1.7 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 = 17 V. If the magnitude of the field varies with time according to B = 0.035 T - (0.90 T/s)t, 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?
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Transcribed Image Text:A square wire loop with 1.7 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 = 17 V. If the magnitude of the field varies with time according to B
= 0.035 T - (0.90 T/s)t, 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?
29.
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B
E ba
bat
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