1
JEE Main 2021 (Online) 31st August Morning Shift
Numerical
+4
-1
A square shaped wire with resistance of each side 3$$\Omega$$ is bent to form a complete circle. The resistance between two diametrically opposite points of the circle in unit of $$\Omega$$ will be ___________.
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2
JEE Main 2021 (Online) 31st August Morning Shift
Numerical
+4
-1
The voltage drop across 15$$\Omega$$ resistance in the given figure will be ______________ V.

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3
JEE Main 2021 (Online) 27th August Evening Shift
Numerical
+4
-1
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 ___________.

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4
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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