Electromagnetism
Current Electricity
MCQ (Single Correct Answer)
Moving Charges and Magnetism
MCQ (Single Correct Answer)
Magnetism and Matter
MCQ (Single Correct Answer)
Electromagnetic Waves
MCQ (Single Correct Answer)
Electromagnetic Induction
MCQ (Single Correct Answer)
Alternating Current
MCQ (Single Correct Answer)
Modern Physics
Dual Nature of Radiation
MCQ (Single Correct Answer)
Semiconductor Devices and Logic Gates
MCQ (Single Correct Answer)
Communication Systems
MCQ (Single Correct Answer)
1
MHT CET 2023 13th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

A charged spherical conductor of radius '$$R$$' is connected momentarily to another uncharged spherical conductor of radius '$$r$$' by means of a thin conducting wire, then the ratio of the surface charge density of the first to the second conductor is

A
$$\mathrm{R}: \mathrm{r}^2$$
B
$$\mathrm{R}: \mathrm{r}$$
C
$$\mathrm{r: R}$$
D
$$\mathrm{1: 1}$$
2
MHT CET 2023 13th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

If the magnitude of intensity of electric field at a distance '$$r_1$$' on an axial line and at a distance '$$r_2$$' on an equatorial line due to a given short dipole are equal, then $$r_1: r_2$$, is

A
$$\sqrt[3]{2}: 1$$
B
$$\sqrt{2}: 1$$
C
$$1: 2$$
D
$$1: \sqrt[3]{2}$$
3
MHT CET 2023 13th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Three charges each of value $$+q$$ are placed at the corners of an isosceles triangle $$\mathrm{ABC}$$ of sides $$\mathrm{AB}$$ and $$\mathrm{AC}$$ each equal to $$2 \mathrm{a}$$. The mid points of $$A B$$ and $$A C$$ are $$D$$ and $$E$$ respectively. The work done in taking a charge $$Q$$ from $$D$$ to $$E$$ is ( $$\varepsilon_0=$$ permittivity of free space)

A
Zero
B
$$\frac{3 q \mathrm{Q}}{4 \pi \varepsilon_0 \mathrm{a}}$$
C
$$\frac{\mathrm{qQ}}{8 \pi \varepsilon_0 \mathrm{a}}$$
D
$$\frac{3 \mathrm{qQ}}{8 \pi \varepsilon_0 \mathrm{a}}$$
4
MHT CET 2023 12th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Select the correct statement from the following.

A
Gravitational force is stronger than electrostatic force
B
Gravitational as well as electrostatic force always attractive.
C
Gravitational as well as electrostatic force always act along the line joining the two objects.
D
Inverse square law $$\left(\mathrm{F} \propto \frac{1}{\mathrm{r}^2}\right)$$ is not obeyed by electrostatic force.
Questions Asked from MCQ (Single Correct Answer)
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