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1. The magnetic domains that become aligned in the iron core contribute to the overall magnetic field of the coil and there- fore increase its magnetic induction.
2. An iron core can generate an electromagnetic wave to change the magnetic field in a coil.
3. An iron core is a magnet and generates magnetic field with or withput a coil.
4. An iron core can increase the current in the coil.
After the Sun exhausts its nuclear fuel, its ultimate fate may be to collapse to a white dwarf state. Calculate the average density of the white dwarf
In Fig. 23-45, a small, nonconducting ball of mass m =1.4 mg and charge q = 2.9 x 10-8 C (distributeduniformly through its volume) hangs from an insulating thread thatmakes an angle θ = 44° with a vertical, uniformly chargednonconducting sheet (sh..
a particle moving in a straight line with constant accelaration is having initial velocity of 10 ms. after some time
If the radius of the earth is located 44 degrees North Latitude, what distance does the earth move in one hour
A ball is thrown horizontally from the top of a 65.0 m building and lands 101.0 m from the base of the building. How long is the ball in the air
Two ice skaters are gliding together along the ice, both moving at a constant velocity (sliding without exerting a force). What is the initial speed of the skaters
A circuit consists of a battery with a closed circuit, a terminal voltage of 12.0 V, and 1.0-?, 2.5-?, 5.0-?, and 7.5-? resistors connected in series, oriented as in figure a above, Calculate the total power dissipated by the load resistors
The intensity of light from the sun is about 1000 W/m^2 on Earth. The distance between Mars, What is the intensity of light from the Sun on Mars
A solid disk of mass M= 2.0 kg and radius R= 0.25 m rotates at an angular velocity of 0.50 rad/s with respect to an axis perpendicular to the disk at its center. what is the angular velocity of the disk
A piston-cylinder device contains air (2kg) at 100kPa and 300K. The air is compressed slowly and frictionless by following a polytropic process with a polytropic exponent of 1.4. The temperature reaches at 360K at the final state.
Provide equations allowing to find moment of inertia of a solid cylinder and of a cylindrical ring
A bird watcher meanders through the woods, walking 0.506 km due east, 0.736 km due south, Determine the magnitude (in kilometers) of the bird watcher's displacement
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