Doubtclip is an AI tutor that turns any homework or exam doubt into a step-by-step whiteboard video lesson with diagrams, formulas, and voice explanation.

Which subjects and exams does it support?

It supports Physics, Chemistry, Mathematics/Calculus and related STEM doubts for school boards, JEE, NEET, and global high-school / undergrad practice.

How do I get a video solution?

Upload a photo of the question or paste the text, sign in, and Doubtclip generates a whiteboard-style explanation video you can watch and share.

Is Doubtclip available worldwide?

Yes. Doubtclip is a web app for students globally. Lessons are available in English and Hinglish.

Electromagnetic Induction

NEET level, single correct, medium

1 of 153

Question 1 of 153

The self-inductance of a solenoid with $N$ turns is proportional to:

Show answer and solution

Answer: (A) $N^2$

L = \mu_0 N^2 A / l \implies L \propto N^2

NEET question paper PDF

The full paper for each year. Open it on this page or download it.

NEET 2025 question paper (Code 45)

Open Download PDF

Opening paper…

Explain it as a whiteboard videoStep-by-step, in Hinglish or English. Your first video needs no login.Solved it on paper but got it wrong?Upload a photo of your working. Mistake Doctor marks the exact line that broke.

See it move: Electromagnetic induction simulationDrag the sliders and watch the numbers in this question change.

More Physics practice

Electromagnetic InductionA circular coil of radius $R=10\,\text{cm}$ and $500$ turns carries current $1\,\text{A}$ . The magnetic field at its centre is ( $B$ in $\text{mT}$ ):
Electromagnetic InductionA square loop of side $2$ cm is placed in a time varying magnetic field with magnitude as $B = 0.4\sin(300t)$ Tesla. The normal to the plane of loop makes an angle of $60°$ with the field. The maximum induced emf produced in the loop is __________ mV.
Electromagnetic InductionA circular loop of radius $20\text{ cm}$ and resistance $2\ \Omega$ is placed in a time varying magnetic field $\vec{B} = (2t^2 + 2t + 3)\text{ T}$ . At $t = 0$ , for the plane of the loop being perpendicular to the magnetic field and, the induced current in the loop at $t = 3\text{ s}$ is $\dfrac{\alpha}{50}\text{ A}$ . The value of $\alpha$ is _______.
(Take $\pi = 22/7$ )
Electromagnetic InductionWhen a coil is placed in a time dependent magnetic field the power dissipated in it is $P$ . The number of turns, area of the coil and radius of the coil wire are $N$ , $A$ and $r$ respectively. For a second coils number of turns, area of the coil and radius of the coil wire are $2N$ , $2A$ and $3r$ respectively. When the first coil is replaced with second coil the power dissipated in it is $\sqrt{2}\,\alpha P$ . The value of $\alpha$ is _______.
Electromagnetic InductionA circular loop of radius 7 cm is placed in uniform magnetic field of 0.2 T directed perpendicular to plane of loop. The loop is converted into a square loop in 0.5 s. The EMF induced in the loop is $\_\_\_\_$ mV.
Electromagnetic InductionA conducting circular loop of area $1.0 \mathrm{~m}^{2}$ is placed perpendicular to a magnetic field which varies as $B=\sin (100 t)$ Tesla. If the resistance of the loop is $100 \Omega$ , then the average thermal energy dissipated in the loop in one period is $\_\_\_\_$ J.

NEET Physics practice question on Electromagnetic Induction, with the answer and a step-by-step solution. Scan a question from your own book or paper to get a whiteboard video.

The self-inductance of a solenoid with NNN turns is proportional to:

NEET question paper PDF

More Physics practice

The self-inductance of a solenoid with $N$ turns is proportional to: