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JEE Advanced 2022 Paper 2 Online
Numerical
+3
-1
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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 ____________.

JEE Advanced 2022 Paper 2 Online Physics - Current Electricity Question 7 English

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JEE Advanced 2022 Paper 1 Online
Numerical
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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 ____________ $\mu C$.

JEE Advanced 2022 Paper 1 Online Physics - Current Electricity Question 10 English

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3
JEE Advanced 2021 Paper 2 Online
Numerical
+4
-0
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In order to measure the internal resistance r1 of a cell of emf E, a meter bridge of wire resistance R0 = 50$$\Omega$$, a resistance R0/2, 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 r1 = __________ $$\Omega$$.

JEE Advanced 2021 Paper 2 Online Physics - Current Electricity Question 23 English
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4
JEE Advanced 2021 Paper 1 Online
Numerical
+2
-0
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In the circuit shown below, the switch S is connected to position P for a long time so that the charge on the capacitor becomes q1 $$\mu$$C. Then S is switched to position Q. After a long time, the charge on the capacitor is q2 $$\mu$$C.

JEE Advanced 2021 Paper 1 Online Physics - Current Electricity Question 25 English

The magnitude of q1 is ________________.
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