16. A closed rectangular coil of 150 loops is 0.2 m by 0.1 m. The coil has a resistance of 5 Ohms. The coil is placed ho

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16 A Closed Rectangular Coil Of 150 Loops Is 0 2 M By 0 1 M The Coil Has A Resistance Of 5 Ohms The Coil Is Placed Ho 1 (39.74 KiB) Viewed 52 times

16. A closed rectangular coil of 150 loops is 0.2 m by 0.1 m. The coil has a resistance of 5 Ohms. The coil is placed horizontally inside of an electromagnet, which is creating a uniform upwards magnetic field with a strength of 1 Tesla. a. Draw the coil and indicate the direction of the magnetic field. b. Give a symbolic equation for the magnetic flux through the coil. c. If the coil is not moving, give the current in the coil and state the reasoning for it. d. The electromagnet is turned off and reaches 0 T in 0.05 seconds. We will assume the magnetic field decreases at a constant rate. i. Use Lenz's law to get the direction of the induced current. ii. Give a symbolic equation for the changing magnetic field while the electromagnet turns off. iii. Give a symbolic equation for the changing magnetic flux through the coil while the electromagnet turns off. iv. Use Faraday's law (and more) to determine the current induced in the coil while the electromagnet turns off. v. Calculate the current while the electromagnet turns off. vi. Calculate the power loss while the electromagnet turns off. vii. Calculate the total energy lost while the electromagnetic turns off.