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प्रश्न
Observe the following figure:
If the current in the coil A is changed, will some current be induced in the coil B? Explain.
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उत्तर
A current will be induced in Coil B. When there is a change in the current in Coil A, a magnetic field is associated with it. This induces a potential difference between the two coils which gives rise to a current in Coil B. This change can be noted by observing the deflection in the galvanometer.
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संबंधित प्रश्न
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State Fleming’s left-hand rule.
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State qualitatively the effect of inserting an iron core into a current-carrying solenoid.
Name the rule for finding the direction of magnetic field produced by a straight current-carrying conductor.
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The magnetic field inside a long circular coil carrying current well be parallel straight lines.
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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The diagram given below represents magnetic field caused by a current-carrying conductor which is:
(a) a long straight wire
(b) a circular coil
(c) a solenoid
(d) a short straight wire
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(a) direction of centre finger.
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A current-carrying conductor is placed perpendicularly in a magnetic field. Name the rule which can be used to find the direction of force acting on the conductor.
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force experienced by a current-carrying straight conductor placed in a magnetic field which is perpendicular to it.
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Explain your answer mentioning the name of the phenomenon involved.
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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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Reason (R): The direction of force is given by Fleming’s left-hand rule.
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