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A solenoid is made by wrapping a wire so that it makes a solenoid (coil) having 500 turns of diameter 8.00 cm and length 40.0 cm.
(a) Find the inductance of this solenoid.
(b) If the current in this solenoid increases at the rate of 3.00 ampere per second, find the self-induced emf in the solenoid.
(c) If the current is steady at 3.0 A, what is the self induced emf.
The volume control on a surround-sound amplifier is adjusted so the sound intensity level at the listening position increases from 23 to 61 dB
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Three equal point charges, each with charge 2.00, are placed at the vertices of an equilateral triangle whose sides are of length 0.650. Illustrate what is the electric potential energy of the system?
a rod of length L lies along the x-axis between x=A and x=A+L. The rod has a non-uniform charge density, What is the magnitude of the electric field at the origin
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