A flexible loop of wire, which is exposed to a uniform magnetic field, is gradually squeezed so that the magnetic flux through the loop changes from 20 Webers to 10 Webers in 5 seconds. What is the magnitude of the EMF induced in the loop? ______ a)4V b)200V c)2V d) 20V e)none of these

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.

Suppose you have a long, skinny conductor that is oriented with its long axis parallel to a uniform magnetic field. Suppose also that the conductor is moving along its long axis in a straight line at constant velocity v. Despite the motion of the conductor, no motional emf is induced. Why? The magnetic field is too uniform The velocity has no component normal to the magnetic field The velocity is too low The conductor is so long and so thin that its electrical resistance is too high

AM Mon Nov 7 bconline.broward.edu b) 2.1 nT c) 1.6 nT d) 3.1 nT e) 3.6 nT 48 6. The electric field amplitude of the signal at that point is 0.780 V/m. What is the amplitude of the magnetic field of the signal at that point? a) 2.6 T 67% 1