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Choose the correct statement. There will be no force experienced, if

Option: 1

two parallel wires carry currents in the same direction


Option: 2

two parallel wires carry currents in the opposite direction


Option: 3

a positive charge is projected between the pole pieces of a bar magnet


Option: 4

a positive charge is projected along the axis of a solenoid carrying current


Answers (1)

The correct choice is (d) since the direction of the field is parallel to the axis of a solenoid. Thus \theta=0  Hence F=0.

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Ramraj Saini

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