1
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 41 English

Your input ____
2
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 ____
3
JEE Main 2022 (Online) 26th July Evening Shift
Numerical
+4
-1
Change Language

In a coil of resistance $$8 \,\Omega$$, the magnetic flux due to an external magnetic field varies with time as $$\phi=\frac{2}{3}\left(9-t^{2}\right)$$. The value of total heat produced in the coil, till the flux becomes zero, will be _____________ $$J$$.

Your input ____
4
JEE Main 2022 (Online) 25th July Evening Shift
Numerical
+4
-1
Change Language

Magnetic flux (in weber) in a closed circuit of resistance 20 $$\Omega$$ varies with time t(s) at $$\phi$$ = 8t2 $$-$$ 9t + 5. The magnitude of the induced current at t = 0.25 s will be ____________ mA.

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