Advertisements
Advertisements
प्रश्न
Why is it that the magnetic field of a current-carrying coil having n turns, is ‘n’ times as large as that produced by a single turn (loop)?
Advertisements
उत्तर
The magnetic field produced by a single wire loop will have a definite direction and strength. If we increase the number of loops the magnetic field due to each loop will add. The magnetic field is directly proportional to the current in the wire loop, with each loop the current increases and so the magnetic field increases. Moreover, it will increase the density of magnetic field lines and so the magnetic field strength. Therefore, the magnetic field of a current-carrying coil having n turns is ‘n’ times as large as produced by a single loop.
APPEARS IN
संबंधित प्रश्न
The back face of a circular loop of wire is found to be south magnetic pole. The direction of current in this face of the circular loop of wire will be:
(a) towards south
(b) clockwise
(c) anticlockwise
(d) towards north
Which of the statement given below correctly describes the magnetic field near a long, straight current carrying conductor?
A magnet kept at the centre of two coils A and B is moved to and fro as shown in the diagram. The two galvanometers show deflection. State with a reason whether : x > y or x< y [x and y are magnitudes of deflection.]

Explain with the help of the pattern of magnetic field lines the distribution of the magnetic field due to a current-carrying a circular loop.
An induced emf is produced when a magnet is moved into a coil. The magnitude of induced emf does not depend on ____________.
If two circular coils can be arranged in any of the three situations as shown in the diagrams below, then their mutual induction will be:

The nature of magnetic field line passing through the centre of current carrying circular loop is ____________.
Why does a magnetic compass needle pointing North and South in the absence of a nearby magnet get deflected when a bar magnet or a current carrying loop is brought near it. Describe some salient features of magnetic lines of field concept.
Explain with the help of a labelled diagram the distribution of magnetic field due to a current through a circular loop. Why is it that if a current carrying coil has n turns the field produced at any point is n times as large as that produced by a single turn?
The correct pattern of magnetic field lines of the field produced by a current carrying circular loop is:
