Problem 1: Consider the coils depicted in the figure. Coil 1 Coil 2 (a) Otheexpertta.com What is the value of the magnetic flux at coil 2 due to coil 1, which has a current / passing through it? D = Problem 2: An MRI technician moves his hand from a region of very low magnetic field strength into an MRI scanner's 2.00T2.00T field with his fingers pointing in the direction of the field Find the average emf, in millivolts, induced in his wedding ring given its diameter is 2.46cm2.46cm, and assuming it takes 0.367s0.367s to move it into the field. cave = Problem 4: A jet airplane with a 75.0 m wingspan is flying at 270 m/s. Randomized Variables v = 270 m/s What emf is induced between the wing tips in V if the vertical component of the Earth's magnetic field is 3.00 x 10- $ T? 8 = Problem 3: Joe has rolled a long electrical extension cord into a coil of radius rc=15 cmc=15 cm with Nc=11@ c=11 loops. The coil of extension cord is initially lying horizontally (flat) on the floor of Joe's garage. Joe picks up the coil and rotates it 9090 counterclockwise in tr=0.851=0.85 seconds so that the coil is now vertically oriented (see the figure) Part (a) If the Earth's magnetic field has strength 0.500.50 gauss and makes an angle of 20.020.0 degrees with the garage floor, calculate the change in the magnetic flux Ad BAQB, in webers, through one of the loops of the coil during the rotation. Treat the initial flux as having a positive sign. AQB = Part (b) Calculate the average induced emf Ec, in volts, in the coil during the rotation. Ec = Part (c) If the extension cord had a resistance of 3.03.0 ohms and formed a closed circuit without any other components, calculate the induced current Ic, in amps, in the extension cord. Problem 13: A precision laboratory resistor is made of a coil of wire. The coil is 1.7 cm in diameter, 3.25 cm long, and has 500 turns. Part (a) What is its self-inductance in millihenries? L = Part (b) What average emf in volts is induced if a 12.0 A current through it is turned on in 5.00 ms (one-fourth of a cycle for 50 Hz AC)? E =