Page No 229: - Chapter 13 - Magnetic Effect Of Electric Current - Ncert Solutions class 10 - Science

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Question 1:

Consider a circular loop of wire lying in the plane of the table. Let the current pass through the loop clockwise. Apply the right-hand rule to find out the direction of the magnetic field inside and outside the loop.

Answer:

Inside the loop = Pierce inside the table

Outside the loop = Appear to emerge out from the table

For downward direction of current flowing in the circular loop, the direction of magnetic field lines will be as if they are emerging from the table outside the loop and merging in the table inside the loop. Similarly, for upward direction of current flowing in the circular loop, the direction of magnetic field lines will be as if they are emerging from the table outside the loop and merging in the table inside the loop, as shown in the given figure.

Question 2:

The magnetic field in a given region is uniform. Draw a diagram to represent it.

Answer:

The magnetic field lines inside a current-carrying long straight solenoid are uniform.