Advertisements
Advertisements
Question
A wire, bent into a circle, carries current in an anticlockwise direction. What polarity does this face of the coil exhibit?
Advertisements
Solution
Face of the coil exhibit North polarity.
APPEARS IN
RELATED QUESTIONS
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
Draw a labelled diagram showing the three magnetic field lines of a loop carrying current. Mark the direction of current and the direction of magnetic field by arrows in your diagram.
What is the direction of magnetic field at the centre of a coil carrying current in clockwise ?
Which of the statement given below correctly describes the magnetic field near a long, straight current carrying conductor?
Answer the following question.
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.
Answer the following question:
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)?
State and illustrate the rule used for finding the polarity of the faces of a circular coil.
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:
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?
