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प्रश्न
State under what conditions force acting on a current carrying conductor which is freely suspended in a magnetic field can be Zero.
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उत्तर
This force F is zero when the magnetic field due to flow of current in the conductor is parallel to the given magnetic field B.
संबंधित प्रश्न
Name the rule for finding the direction of magnetic field produced by a straight current-carrying conductor.
A current-carrying straight wire is held in exactly vertical position. If the current passes through this wire in the vertically upward direction, what is the direction of magnetic field produced by it? Name the rule used to find the direction of magnetic field.
A current-carrying conductor is held in exactly vertical direction. In order to produce a clockwise magnetic field around the conductor, the current should passed in the conductor:
(a) from top towards bottom
(b) from left towards right
(c) from bottom towards top
(d) from right towards left
State Fleming's left-hand rule. Explain it with the help of labelled diagrams.
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The force on the wire due to the magnet is directed:
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from S to N
vertically downwards
vertically upwards
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the current is stopped by removing the plug from the key?
Explain your answer mentioning the name of the phenomenon involved.
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