1
JEE Main 2024 (Online) 1st February Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
Two identical capacitors have same capacitance $C$. One of them is charged to the potential $V$ and other to the potential $2 \mathrm{~V}$. The negative ends of both are connected together. When the positive ends are also joined together, the decrease in energy of the combined system is :
A
$\frac{1}{4} \mathrm{CV}^2$
B
$\frac{3}{4} \mathrm{CV}^2$
C
$\frac{1}{2} \mathrm{CV}^2$
D
$2 \mathrm{CV}^2$
2
JEE Main 2023 (Online) 13th April Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

In the network shown below, the charge accumulated in the capacitor in steady state will be:

JEE Main 2023 (Online) 13th April Evening Shift Physics - Capacitor Question 26 English

A
10.3 $$\mu$$C
B
7.2 $$\mu$$C
C
4.8 $$\mu$$C
D
12 $$\mu$$C
3
JEE Main 2023 (Online) 11th April Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

A capacitor of capacitance $$\mathrm{C}$$ is charged to a potential V. The flux of the electric field through a closed surface enclosing the positive plate of the capacitor is :

A
Zero
B
$$\frac{C V}{\varepsilon_{0}}$$
C
$$\frac{C V}{2 \varepsilon_{0}}$$
D
$$\frac{2 C V}{\varepsilon_{0}}$$
4
JEE Main 2023 (Online) 11th April Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

A parallel plate capacitor of capacitance $$2 \mathrm{~F}$$ is charged to a potential $$\mathrm{V}$$, The energy stored in the capacitor is $$E_{1}$$. The capacitor is now connected to another uncharged identical capacitor in parallel combination. The energy stored in the combination is $$\mathrm{E}_{2}$$. The ratio $$\mathrm{E}_{2} / \mathrm{E}_{1}$$ is :

A
1 : 2
B
2 : 3
C
2 : 1
D
1 : 4
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