Q. Which of the following is a wrong statement
A) An emf can be induced between the ends of a straight conductor by moving it through a uniform magnetic field
B) The self induced emf produced by changing current in a coil always tends to decrease the current
C) Inserting an iron core in a coil increases its coefficient of self induction
D) According to Lenz’s law, the direction of the induced current is such that it opposes the flux change that causes it
Explanation
The correct answer is Option B: The self induced emf produced by changing current in a coil always tends to decrease the current.
A detailed explanation for this question is being prepared.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.