Advertisements
Advertisements
Question
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.
Solution
We can see three lines representing magnetic fields. In one, the current is represented moving upwards in an anticlockwise direction, whereas in the other, it is shown moving downwards in a clockwise manner. The loop's axis is parallel to the magnetic field line in the middle.
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
A wire, bent into a circle, carries current in an anticlockwise direction. What polarity does this face of the coil exhibit?
Which of the statement given below correctly describes the magnetic field near a long, straight current carrying conductor?
What is a solenoid? Compare the magnetic field produced by a solenoid with the magnetic field of a bar magnet. Draw neat figures and name various components.
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.
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:
Meena draws magnetic field lines of field close to the axis of a current carrying circular loop. As she moves away from the centre of the circular loop she observes that the lines keep on diverging.
How will you explain her observation.
Explain the phenomenon of electromagnetic induction. Describe an experiment to show that a current is set up in a closed loop when an external magnetic field passing through the loop increases or decreases.
