MHT CET 2020 16th October Evening Shift | Electrostatics Question 97 | Physics

A spherical rubber balloon carries a charge, uniformly distributed over the surface. As the balloon is blown up and increases in size, the total electric flux coming out of the surface

increases

remains unchanged

becomes zero

decreases

MHT CET 2020 16th October Morning Shift

MCQ (Single Correct Answer)

-0

Surface density of charge on a charged conducting sphere of radius $$R$$ in terms of electric field intensity $$E$$ at a distance $$r$$ in free space is ($$r>R, \varepsilon_0=$$ permittivity of free space)

$$\varepsilon_0 E\left(\frac{R}{r}\right)^2$$

$$\varepsilon_0 E \frac{R}{r}$$

$$\varepsilon_0 E\left(\frac{r}{R}\right)^2$$

$$\varepsilon_0 E \frac{r}{R}$$

MHT CET 2019 3rd May Morning Shift

MCQ (Single Correct Answer)

-0

In case of dimensions of electric field and electric dipole moment the power of mass is reswpectively,

1, 1

1, 0

0, 1

0, 0

MHT CET 2019 3rd May Morning Shift

MCQ (Single Correct Answer)

-0

A charged conductor produces an electric field of intensity $10^3 \mathrm{~V} / \mathrm{m}$ just outside its surface in vacuum. Then, it produces the electric field of intensity E just outside its surface, when it is placed in a medium of dielectric constant 4. The value of $E$ will be

$400 \mathrm{~V} / \mathrm{m}$

$450 \mathrm{~V} / \mathrm{m}$

$250 \mathrm{~V} / \mathrm{m}$

$150 \mathrm{~V} / \mathrm{m}$

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