Moving Charges and Magnetism

Related Questions

• A solenoid is $1.0$ metre long and it has $4250$ turns. If a current of $5.0$ ampere is flowing through it, what is the magnetic field at its centre$[{\mu _0} = 4\pi \times {10^{ - 7}}\,weber/amp - m]$

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• A long wire A carries a current of 10 amp. Another long wire B, Which is parallel to A and separated by 0.1m from A, carries a current of 5 amp, in the opposite direction to that in A. what is the magnitude and nature of the force experienced per unit length of B$({\mu _0} = 4\pi \times {10^{ - 7}}\,weber/amp{\rm{ - }}m)$

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• In the figure, what is the magnetic field at the point O

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• The sensitiveness of a moving coil galvanometer can be increased by decreasing

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• Two long parallel wires carrying equal current separated by 1m, exert a force of $2 \times {10^{ - 7}}N/m$ on one another. The current flowing through them is

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