True Or False I. A stationary charged particle does not react with anElectric fi

Question

True Or False I. A stationary charged particle does not react with anElectric field. II. For two parallel wires 1 meter apart the force is oneNewton when the current is one Amp. III. Faraday's Law says that the induced emf is equal to thenegative of the number of coils times the change in magnetic flux /change time. IV. All metals are attracted to magnets. True Or False I. A stationary charged particle does not react with anElectric field. II. For two parallel wires 1 meter apart the force is oneNewton when the current is one Amp. III. Faraday's Law says that the induced emf is equal to thenegative of the number of coils times the change in magnetic flux /change time. IV. All metals are attracted to magnets.

Explanation / Answer

I.False.This is because the stationary charged particle doesnot stay stationary when it is in an electric field.It moves eitherin the direction or opposite to the direction of the electric fielddepending on whether the charged particle is positive ornegative. II.force between two parallel wires is F = (oI1 * I2/2 * d) * l o= 4 * 10^-7 N/A^2,I1 = I2 = 1 ampere,d= 1 meter and l is the length of the wires therefore,the force is not one newton.Hence the statement isfalse. III.True. The Faraday's law can be written as E = -N * (dB/dt) N is number of turns in the coil dB change in magnetic flux dt change in time IV.True. This is because the magnetic poles get alingned in thedirection of the magnetic field created by the magnet andtherefore all metals are attracted by magnets.

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