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JEE Main 2021 (Online) 27th August Evening Shift
Numerical
+4
-1
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The ratio of the equivalent resistance of the network (shown in figure) between the points a and b when switch is open and switch is closed is x : 8. The value of x is ___________.

JEE Main 2021 (Online) 27th August Evening Shift Physics - Current Electricity Question 133 English
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2
JEE Main 2021 (Online) 27th August Morning Shift
Numerical
+4
-1
First, a set of n equal resistors of 10 $$\Omega$$ each are connected in series to a battery of emf 20V and internal resistance 10$$\Omega$$. A current I is observed to flow. Then, the n resistors are connected in parallel to the same battery. It is observed that the current is increased 20 times, then the value of n is ............... .
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3
JEE Main 2021 (Online) 27th July Evening Shift
Numerical
+4
-1
For the circuit shown, the value of current at time t = 3.2 s will be _________ A.

JEE Main 2021 (Online) 27th July Evening Shift Physics - Current Electricity Question 142 English
[Voltage distribution V(t) is shown by Fig. (1) and the circuit is shown in Fig. (2)]
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4
JEE Main 2021 (Online) 25th July Evening Shift
Numerical
+4
-1
A 16 $$\Omega$$ wire is bend to form a square loop. A 9V supply having internal resistance of 1$$\Omega$$ is connected across one of its sides. The potential drop across the diagonals of the square loop is _______________ $$\times$$ 10$$-$$1 V
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