A spacecraft orbiting the Earth has a coil of wire in it. An astronaut measures a small current in the coil, although there is no battery connected to it and there are no magnets on the spacecraft. What is causing the current?

On an electric stovetop, the elements consist of a thick metal strip/wire that is coiled and may or may not be visible. When supplied with current, by turning a dial or knob, we can heat a pot filled with water because   Question 15 options:   electrons leave the pot and enter the coil to heat it up.   electrons in the coil create a magnetic field in the pot to heat it up.   electrons leave the coil and enter the pot to heat it up.   electrons in the coil encounter resistance and the coil heats up.

In the figure below, the blue wire has a current I = 34 A and the red loop is a square with sides that are 45 cm long. The distance between the blue wire and wire AB is 2.6 cm. Determine the force the blue wire exerts on wire AB and the force the blue wire exerts wire CD. I A B Force of blue wire on AB direction of force on AB : 67 V 4.7 Q Force of blue wire on CD = direction of force on CD Choose direction

Determine the magnitude of the net magnetic field at a point 1 m to the side of one wire and 3.0 m from the other wire. The point is in the same plane as the wires. Express your answer with the appropriate units.

A bar magnet has two poles -- a north pole and a south pole. If the bar was cut in half   each half would be either north or south.   each half would have its own north pole and south pole.   each half couldn't be attracted to the other half.   each half would lose its magnetism.   The total resistance in a circuit containing resistors connected in series is given by   the sum of the individual resistances   the sum of the currents   the sum of the inverses of the individual resistances   the sum of the voltages

Calculate the force per unit length on one of the two parallel, current carrying conductors. Each conductor carries 2A of current and the currents are in the same directions. the distance between the two is 2 cm. 4*10-5 N/m 4*10-7 N/m 2 * 10-5 N/m 4π * 10-5 N/m none of the above 4*10-7 N/m 2 * 10-5 N/m 4π * 10-5 N/m none of the above