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Solution - Use Lenz’S Law to Determine the Direction of Induced Current - CBSE (Science) Class 12 - Physics

ConceptLenz’S Law and Conservation of Energy

Question

Use Lenz’s law to determine the direction of induced current in the situations described by Fig. 6.19:

(a) A wire of irregular shape turning into a circular shape;

(b) A circular loop being deformed into a narrow straight wire.

Solution

According to Lenz’s law, the direction of the induced emf is such that it tends to produce a current that opposes the change in the magnetic flux that produced it.

(a) When the shape of the wire changes, the flux piercing through the unit surface area increases. As a result, the induced current produces an opposing flux. Hence, the induced current flows along adcb.

(b) When the shape of a circular loop is deformed into a narrow straight wire, the flux piercing the surface decreases. Hence, the induced current flows along a'd'c'b'

Is there an error in this question or solution?

APPEARS IN

 NCERT Physics Textbook for Class 12 Part 1 (with solutions)
Chapter 6: Electromagnetic Induction
Q: 2 | Page no. 230

Video TutorialsVIEW ALL [1]

Reference Material

Solution for question: Use Lenz’S Law to Determine the Direction of Induced Current concept: Lenz’S Law and Conservation of Energy. For the courses CBSE (Science), CBSE (Arts), CBSE (Commerce)
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