A circular loop of flexible conducting wire has an initial circumference of B 2.53 m, but its circumference is decreasing at a constant rate of 0.22 m/s due to a tangential pull on the wire. The loop is in a constant, uniform magnetic field oriented perpendicular to the plane of the loop and with magnitude 1.120 T. (a) Find the emf induced in the loop at the instant when 5.5 s have passed. (b) Find the direction of the induced current according to the drawing (as clockwise/anticlockwise), give your reasoning. (c) If resistance per length of wire is 17.3 ohm/cm, find the current at the same instant. pull
A circular loop of flexible conducting wire has an initial circumference of B 2.53 m, but its circumference is decreasing at a constant rate of 0.22 m/s due to a tangential pull on the wire. The loop is in a constant, uniform magnetic field oriented perpendicular to the plane of the loop and with magnitude 1.120 T. (a) Find the emf induced in the loop at the instant when 5.5 s have passed. (b) Find the direction of the induced current according to the drawing (as clockwise/anticlockwise), give your reasoning. (c) If resistance per length of wire is 17.3 ohm/cm, find the current at the same instant. pull
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A circular loop of flexible conducting wire has an initial circumference of2.53 m, but its circumference is decreasing at a constant rate of0.22 m/sdue to a tangential pull on the wire. The loop is in a constant, uniform magnetic field oriented perpendicular to the plane of the loop and with magnitude1.120T. (a) Find the emf induced in the loop at the instant when5.5 shave passed. (b) Find the direction of the induced current according to the drawing (as clockwise/anticlockwise), give your reasoning. (c) If resistance per length of wire is17.3ohm/cm, find the current at the same instant.
Transcribed Image Text:A circular loop of flexible conducting wire has an initial circumference of B
2.53 m, but its circumference is decreasing at a constant rate of
0.22 m/s due to a tangential pull on the wire. The loop is in a constant,
uniform magnetic field oriented perpendicular to the plane of the loop
and with magnitude 1.120 T.
(a) Find the emf induced in the loop at the instant when 5.5 s have
passed.
(b) Find the direction of the induced current according to the drawing
(as clockwise/anticlockwise), give your reasoning.
(c) If resistance per length of wire is 17.3 ohm/cm, find the current at
the same instant.
pull
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