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प्रश्न
A copper conductor is placed over two stretched copper wires whose ends ate connected to a D.C. supply as shown in the diagram.
- What should be the magnetic poles at the points A and B lying on either side of the conductor to experience the force in the upward direction?
- Name the law used to find these polarities.

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उत्तर
- A - North pole
B - South pole - The Fleming's left hand rule is the law that was applied to ascertain the polarities.
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संबंधित प्रश्न
Fill in the following blank with suitable words:
For a current-carrying solenoid, the magnetic field is like that of a ...........
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(a) will decrease
(b) will increase
(c) will become zero
(d) will remain the same
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(a) direction of centre finger.
(b) direction of forefinger.
(c) direction of thumb.
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Is the current flowing clockwise or anticlockwise around the coil when viewed from above?
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