Through two parallel wires and and of currents are passed respectively in opposite directions. If the wire is infinitely long and the length of the wire is , then force on the conductor , which is situated at distance from , will be
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A wire of length carrying a current of is placed parallel to along wire of length . The wire carries a current of . The distance between two wires is and currents flow in the same direction. The force acting on the wire is :
directed towards wire .
directed away from wire .
Given, length of wire Length of wire
Distance between two wire,
Force of interaction
towards
Two straight long conductors and are perpendicular to each other and carry currents and . The magnitude of the magnetic induction at a point at a distance a from the point in a direction perpendicular to the plane is
The point is lying symmetrically w.r.t. the two long straight current carrying conductors. The magnetic fields at due to these current carrying conductors are mutually perpendicular.
Two long parallel wires and are held perpendicular to the plane of paper with distance of between them. If and carry current of . and . respectively in the same direction, then the magnetic field at a point halfway between the wires is
Two thin, long, parallel wires, separated by a distance ' ' carry a current of ' ' in the same direction. They will
repel each other with a force of
attract each other with a force of
(attractive as current is in the same direction)
A triangular shaped wire carrying current is placed in a uniform magnetic field of , as shown in figure. The magnetic force on segment is (Given )
Three wires are situated at the same distance. A current of flows through these wires in the same direction. What is ratio of , where is force on 1 and on 2?
1
None of these
Due to flow of current in same direction at adjacent side, an attractive magnetic force will be produced.
Three infinitely long parallel straight current carrying wires and are kept at equal distance from each other as shown in the figure. The wire experiences net force . The net force on wire , when the current in wire is reversed will be
Zero
Two long wires are hanging freely. They are joined first in parallel and then in series and then are connected with a battery. In both cases which type of force acts between the two wires?
Attraction force when in parallel and repulsion force when in series
Repulsion force when in parallel and attraction force when in series
Repulsion force in both cases
Attraction force in both cases
If a current is passed through a spring then the spring will
expand
compress
remains same
none of these
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