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प्रश्न
Write Fleming’s right hand thumb rule with the help of diagram.
Write Fleming’s right-hand thumb rule.
Explain the right-hand thumb rule with the help of a diagram.
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उत्तर
If a current-carrying straight conductor is held in our right hand such that the thumb points towards the direction of the current, then the curled fingers around the conductor will give the direction of the magnetic field.
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संबंधित प्रश्न
The device used for producing electric current is called _________.
State three differences between direct current and alternating current.
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A horizontal straight wire 10 m long extending from east to west is falling with a speed of 5.0 m s−1, at right angles to the horizontal component of the earth’s magnetic field, 0.30 × 10−4 Wb m−2.
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- Which end of the wire is at the higher electrical potential?
A circular coil of cross-sectional area 200 cm2 and 20 turns is rotated about the vertical diameter with angular speed of 50 rad s−1 in a uniform magnetic field of magnitude 3.0 × 10−2T. Calculate the maximum value of the current in the coil.
Explain why, the core of an electromagnet should be of soft iron and not of steel.
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(a) Fleming's right-hand rule
(b) Fleming's left-hand rule
(c) Clock face rule
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(b) east pole
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(a) Name the parts labeled A and B.
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direction shown in the diagram (anticlockwise)?
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the field and the number of turns constant,
(ii ) Doubling the number of turns on the coil and at the same time
doubling the speed of rotation of the coil, keeping th e speed
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