The emf induced in a coil is proportional to the magnitude of flux through the c

Question

The emf induced in a coil is proportional to the magnitude of flux through the coil. True False A solenoid of length 0.700 m and resistance 2.4 ohms has a self-inductance of 3.37 mu H. What is the energy stored in the inductor when a constant current of 0.811 A runs through it? 1.37 mu j 1.11 mu j 1.86 mu j zero 2.66 mu j A single circular coil of radius 5.0 cm and resistance 0.20 Ohm is placed in a uniform magnetic field perpendicular to the plane of the coil. The magnitude of the field changes with time according to B = 0.50e^-20t T. What is the magnitude of the current induced in the coil at the time t = 0.25 s? 4.2 mA 1.3 mA 7.5mA 2.6 mA 9.2 mA A coil lies flat on a tabletop in a region where the magnetic field vector points straight up. The magnetic field vanishes suddenly. When viewed from above, what is the direction of the induced current in this coil as the field fades? clockwise then counter-clockwise clockwise counter-clockwise counter-clockwise then clockwise There is no current induced in the coil. A 2.0-m long conducting wire is formed into a square and placed in the horizontal xy-plane. A uniform magnetic field is oriented 30.0 degree above the horizontal with a strength of 9.0 T. What is the magnetic flux through the square? 2.3 T middot m^2 1.9T middot m^2 4.5T middot m^2 18T middot m^2

Explanation / Answer

I can only answer 1 question per submittion. I will have to answer the first one since there was not asked for an specific one.

According to Faraday's law the magnitude of the circulation of the electric field E around a closed loop is equal to the rate of change of the magnetic flux through the area enclosed by the loop. Statement on question 6 is False bcause it does not depend on the intensity but on the rate of change.

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