A metal wire loop hangs near the earth's surface from an insulating string. The loop spins continuously (at constant angular velocity) so that its area vector points north, then west, then south, then east, etc.
4.A conducting slider (thick line) moves without friction along a vertical U-shaped conducting track (thin line) in a magnetic field as shown.
A very large loop of metal wire with radius 1 meter is driven with a linearly increasing current at a rate of 200 amps/second. A very small metal wire loop with radius 5 centimeter is positioned a small distance away with its center on the same axis (the loops are coaxial). The small loop experiences an induced emf of 983 nano-volts. What is the separation of the loops in meters? Note that a subtraction step in the solution makes it sensitive to significant figures. Keep at least four figures in your calculation.
1 answer
1 answer