1
JEE Main 2023 (Online) 10th April Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

The equivalent capacitance of the combination shown is :

JEE Main 2023 (Online) 10th April Morning Shift Physics - Capacitor Question 13 English

A
$$\frac{C}{2}$$
B
4C
C
$$\frac{5}{3}$$C
D
2C
2
JEE Main 2023 (Online) 8th April Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

In this figure the resistance of the coil of galvanometer G is $$2 ~\Omega$$. The emf of the cell is $$4 \mathrm{~V}$$. The ratio of potential difference across $$\mathrm{C}_{1}$$ and $$\mathrm{C}_{2}$$ is:

JEE Main 2023 (Online) 8th April Morning Shift Physics - Capacitor Question 11 English

A
$$\frac{5}{4}$$
B
$$\frac{3}{4}$$
C
1
D
$$\frac{4}{5}$$
3
JEE Main 2023 (Online) 1st February Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Given below are two statements: One is labeled as Assertion A and the other is labeled as Reason R.

Assertion A : Two metallic spheres are charged to the same potential. One of them is hollow and another is solid, and both have the same radii. Solid sphere will have lower charge than the hollow one.

Reason R : Capacitance of metallic spheres depend on the radii of spheres

In light of the above statements, choose the correct answer from the options given below.

A
Both $$\mathbf{A}$$ and $$\mathbf{R}$$ are true but $$\mathbf{R}$$ is not the correct explanation of $$\mathbf{A}$$
B
Both $$\mathbf{A}$$ and $$\mathbf{R}$$ are true and $$\mathbf{R}$$ is the correct explanation of $$\mathbf{A}$$
C
$$\mathbf{A}$$ is false but $$\mathbf{R}$$ is true
D
$$\mathbf{A}$$ is true but $$\mathbf{R}$$ is false
4
JEE Main 2023 (Online) 25th January Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

A parallel plate capacitor has plate area 40 cm$$^2$$ and plates separation 2 mm. The space between the plates is filled with a dielectric medium of a thickness 1 mm and dielectric constant 5. The capacitance of the system is :

A
$$\mathrm{10\varepsilon_0~F}$$
B
$$\mathrm{24\varepsilon_0~F}$$
C
$$\mathrm{\frac{3}{10}\varepsilon_0~F}$$
D
$$\mathrm{\frac{10}{3}\varepsilon_0~F}$$
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