1
JEE Main 2023 (Online) 30th January Morning Shift
Numerical
+4
-1

As per the given figure, if $$\frac{\mathrm{dI}}{\mathrm{dt}}=-1 \mathrm{~A} / s$$ then the value of $$\mathrm{V}_{\mathrm{AB}}$$ at this instant will be ____________ $$\mathrm{V}$$.

2
JEE Main 2023 (Online) 29th January Morning Shift
Numerical
+4
-1

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.

3
JEE Main 2023 (Online) 24th January Evening Shift
Numerical
+4
-1

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.

4
JEE Main 2022 (Online) 28th July Evening Shift
Numerical
+4
-1

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