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प्रश्न
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
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उत्तर
It is given that the current-carrying conductor is held in exactly vertical direction. In order to produce a clockwise magnetic field around the conductor, the current should be passed in the conductor from top towards bottom. It is concluded by applying right-hand thumb rule.
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संबंधित प्रश्न
Which of the following correctly describes the magnetic field near a long straight wire?
State Fleming’s left hand rule.
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What is the shape of a current-carrying conductor whose magnetic field pattern resembles that of a bar magnet?
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(b) downwards
(c) anticlockwise
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Name one device whose working depends on the force exerted on a current-carrying coil placed in a magnetic field.
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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.
i) Which principle is explained in this figure?
ii) Which rule is used to find out the direction of a force in this principle?
iii) In which machine this principle is used? Draw a diagram showing working of that machine
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Write Fleming’s left hand rule.
The strength of magnetic field around a current-carrying conductor is ____________.
When current is parallel to a magnetic field, then force experience by the current-carrying conductor placed in a uniform magnetic field is ____________.
What does the direction of thumb indicate in the right-hand thumb rule. In what way this rule is different from Fleming’s left-hand rule?
A copper wire is held between the poles of a magnet
The current in the wire can be reversed. The pole of the magnet can also be changed over. In how many of the four directions shown can the force act on the wire?
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Reason (R): The net charge on a current carrying conductor is always zero.
Two LED bulbs of 10W and 5W are connected in series. If the current flowing through 5W bulb is 0.005A, the current flowing through 10W bulb is ______.
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