1
JEE Main 2023 (Online) 29th January Morning Shift
Numerical
+4
-1
Change Language

A certain elastic conducting material is stretched into a circular loop. It is placed with its plane perpendicular to a uniform magnetic field B = 0.8 T. When released the radius of the loop starts shrinking at a constant rate of 2 cms$$^{-1}$$. The induced emf in the loop at an instant when the radius of the loop is 10 cm will be __________ mV.

Your input ____
2
JEE Main 2023 (Online) 24th January Evening Shift
Numerical
+4
-1
Change Language

Three identical resistors with resistance R = 12$$\Omega$$ and two identical inductors with self inductance L = 5 mH are connected to an ideal battery with emf of 12 V as shown in figure. The current through the battery long after the switch has been closed will be _____________ A.

JEE Main 2023 (Online) 24th January Evening Shift Physics - Electromagnetic Induction Question 31 English

Your input ____
3
JEE Main 2022 (Online) 28th July Evening Shift
Numerical
+4
-1
Change Language

For the given circuit the current through battery of 6 V just after closing the switch 'S' will be _________ A.

JEE Main 2022 (Online) 28th July Evening Shift Physics - Electromagnetic Induction Question 38 English

Your input ____
4
JEE Main 2022 (Online) 27th July Evening Shift
Numerical
+4
-1
Change Language

A conducting circular loop is placed in $$X-Y$$ plane in presence of magnetic field $$\overrightarrow{\mathrm{B}}=\left(3 \mathrm{t}^{3} \,\hat{j}+3 \mathrm{t}^{2}\, \hat{k}\right)$$ in SI unit. If the radius of the loop is $$1 \mathrm{~m}$$, the induced emf in the loop, at time, $$\mathrm{t}=2 \mathrm{~s}$$ is $$\mathrm{n} \pi \,\mathrm{V}$$. The value of $$\mathrm{n}$$ is ___________.

Your input ____
JEE Main Subjects
EXAM MAP
Medical
NEET
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
CBSE
Class 12