Question

A rectangular coil of wire N = 20 loops with sides a = 0.30m and b = 0.70m is positioned perpendicular to a uniform 0.55T magnetic field as shown below. It is quickly pulled from the field at constant speed perpendicular to B to a region where B drops abruptly to zero, At t=0, the middle of the coil in at the edge of the field. The total resistance of the loop in R = 46 ohms. It takes 0.0125 seconds for the coil to be removed from the field Find the rate of change in flux through the coil The emf and current induced The total energy dissipated in the coil What was the average force require? A 5.0mW laser pointer creates a spot that is 2.5mm in diameter. Determine the radiation pressure on a screen that reflects 64% of the EM radiation that strikes the screen. Determine the average radiation intensity. Using the radiation intensity find the magnetic field associated with the EM radiation that strikes the screen.

Answer 1