1

JEE Advanced 2022 Paper 2 Online

Numerical

+3

-1

Two resistances $R_{1}=X \Omega$ and $R_{2}=1 \Omega$ are connected to a wire $A B$ of uniform resistivity, as shown in the figure. The radius of the wire varies linearly along its axis from $0.2 \mathrm{~mm}$ at $A$ to $1 \mathrm{~mm}$ at $B$. A galvanometer $(\mathrm{G})$ connected to the center of the wire, $50 \mathrm{~cm}$ from each end along its axis, shows zero deflection when $A$ and $B$ are connected to a battery. The value of $X$ is ____________.

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2

JEE Advanced 2022 Paper 1 Online

Numerical

+3

-0

In the following circuit $C_{1}=12 \mu F, C_{2}=C_{3}=4 \mu F$ and $C_{4}=C_{5}=2 \mu F$. The charge stored in $C_{3}$ is ____________ $\mu C$.

Your input ____

3

JEE Advanced 2021 Paper 2 Online

Numerical

+4

-0

In order to measure the internal resistance r

_{1}of a cell of emf E, a meter bridge of wire resistance R_{0}= 50$$\Omega$$, a resistance R_{0}/2, another cell of emf E/2 (internal resistance r) and a galvanometer G are used in a circuit, as shown in the figure. If the null point is found at l = 72 cm, then the value of r_{1}= __________ $$\Omega$$.Your input ____

4

JEE Advanced 2020 Paper 2 Offline

Numerical

+4

-0

In the balanced condition, the values of the resistances of the four arms of a Wheatstone bridge are shown in the figure below. The resistance R

_{3}has temperature coefficient 0.0004$$^\circ$$C^{-1}. If the temperature of R_{3}is increased by 100$$^\circ$$C, the voltage developed between S and T will be ________ volt.Your input ____

Questions Asked from Current Electricity (Numerical)

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