MCQ
A magnet is made to oscillate with a particular frequency, passing through a coil as shown in figure. The time variation of the magnitude of $e.m.f.$ generated across the coil during one cycle is
- ✓
- B
- C
- D
✓
Answer
Correct option: A.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
What is the net magnetic flux through a closed surface?
____ And _____ led to understanding of atomic structures:
- Fresnel diffraction.
- Cathode rays.
- X-rays.
- Electrons.
Evidence for the expanding universe is given by _______ of light spectrum received from them.
Shift by which the object appears to be raised depends on:
A ball of mass $1 g$ and charge $10^{-8} C$ moves from a point $A.$ where potential is $600$ volt to the point $B$ where potential is zero. Velocity of the ball at the point B is $20 \ cm / s$. The velocity of the ball at the point $A$ will be
→The high temperature required to initiate the nuclear fusion reaction is to overcome the _______ present between the atoms.
A thin equiconvex lens is made of glass of refractive index $1.5$ and its focal length is $0.2 m,$ if it acts as a concave lens of $0.5 m$ focal length when dipped in a liquid, the refractive index of the liquid is
→Ionic molecules are:
A wire in the form of a square of side $'a\ '$ carries a current $i$. Then the magnetic induction at the centre of the square wire is $($Magnetic permeability of free space $= \mu_0 )$
→The similarity between the sound waves and light waves is(a) Both are electromagnetic waves(b) Both are longitudinal waves(c) Both have the same speed in a medium(d) They can produce interference