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प्रश्न
The front face of a circular wire carrying current behaves like a north pole. The direction of current in this face of circular wire is:
(a) clockwise
(b) downwards
(c) anticlockwise
(d) upwards
उत्तर
anticlockwise
Because anticlockwise flow of current induces north polarity.
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संबंधित प्रश्न
State Fleming's left hand rule.
State the form of magnetic field lines around a straight current-carrying conductor.
State whether the following statement is true or false:
The magnetic field inside a long circular coil carrying current well be parallel straight lines.
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.
State Fleming's left-hand rule. Explain it with the help of labelled diagrams.
Name the following diagram and explain the concept behind it.
State two ways to increase the speed of rotation of a D.C. motor.
State whether a magnetic field is associated or not around a moving charge.
The shape of the magnetic field lines produced by a current-carrying conductor is ____________.
What do you know about Michael Faraday?
