Arrange the following in correct sequence.
A. Magnetic flux through the coil changes and
B. the bulb will glow
C. A coil is rotated in a magnetic field
D. emf is induced in the coil, then
Choose the correct answer from the options given below:
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) → C, A, D, B
This is the chain of Faraday’s law of induction: a changing flux induces an emf, and the emf drives a current through a closed circuit.
C — A coil is rotated in a magnetic field;
A — Magnetic flux through the coil changes and
D — emf is induced in the coil, then
B — the bulb will glow, as the induced current flows through it.
So the order is C, A, D, B.
NCERT (2026-27):
AC Generator – “… The coil (called armature) is mechanically rotated in the uniform magnetic field by some external means. The rotation of the coil causes the magnetic flux through it to change, so an emf is induced in the coil.”