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Course: Class 12 Physics (India) > Unit 6

Lesson 7: Self inductance
Science
Class 12 Physics (India)
Electromagnetic induction
Self inductance
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Self Inductance

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Problem

Some time after a switch is closed in a circuit containing a solenoid, the current changes at the rate of 0.1 A/s. The self-inductance of the solenoid is L=2 H.
Find the magnitude of emf generated in the solenoid to oppose this change of current.
|ε|=
  • Your answer should be
  • an integer, like 6
  • a simplified proper fraction, like 3/5
  • a simplified improper fraction, like 7/4
  • a mixed number, like 1 3/4
  • an exact decimal, like 0.75
  • a multiple of pi, like 12 pi or 2/3 pi
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