Consider a solenoidal coil initially carrying a time- varying current i(t) wrapped around a second coil. If the current in the first solenoid is set to 2i(t), which of the following quantities would double in magnitude for the second solenoid (assuming these quantities

Q: Determine value of resistance Voltage=22 V Current=2 amp

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Q: Answer it.  A flux of 25 X10^5 Maxwell links with a 1500 turn coil when a current of 3 A passes…

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A: GivenMass of car, m=1500 kgCar moving with constant velocity, v=3 m/sCoeficient of friction, f=0.6

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Electromagnets

The word "electromagnet" is composed of two words, ‘electro’ and ‘magnet’. It is a type of magnet in which an electric current helps in the generation of a magnetic field. Electromagnets usually consist of two major parts, wire and a coil around which the wire is wound. This is called a solenoid. When an electric current is allowed to pass through the coiled wire, the electric current produces a magnetic field. This magnetic field is present only when current is passing through the wire.