Home › NEET UG › Physics › Electromagnetic Induction › Doubling the number of turns of a coil changes t…
Doubling the number of turns of a coil changes the induced emf by:
ADoubling it
BHalving it
CLeaving it
DZeroing it
Answer & Solution
Correct answer: A. Doubling it
1. Each turn contributes the same change of flux.
2. The contributions of the turns add together.
3. So twice the turns gives twice the emf.
_Source: NCERT Class 12 Physics Part I, Chapter 6, Electromagnetic Induction._
Related questions
The coil of an AC generator connects to the outside circuit through:A coil is labelled 2 H. The H stands for the unit called the:A magnet dropped through an aluminium pipe, compared with a PVC pipe, takes:Some trains brake with electromagnets held above the rails. The braking feels:Cutting slots in the swinging copper plate makes it:A copper plate swings between the poles of a magnet and soon stops. The cause is:A loop moves while lying fully inside a uniform magnetic field. The induced current is:Where does the work you do pushing the magnet into the coil end up?