MHT CET 2021 20th September Morning Shift | Electrostatics Question 124 | Physics

A spherical conducting shell of inner radius 'r$$_1$$' and outer radius 'r$$_2$$' has a charge 'Q'. A charge $$-$$q is placed at the centre of the shell. The surface charge density on the inner and outer surface of the shell will be

MHT CET 2021 20th September Morning Shift Physics - Electrostatics Question 131 English

$$\frac{q}{4 \pi r_1^2}$$ and $$\frac{\mathrm{Q}-\mathrm{q}}{4 \pi \mathrm{r}_2^2}$$

$$\frac{q}{4 \pi r_1^2}$$ and $$\frac{Q}{4 \pi r_2^2}$$

$$\frac{-q}{4 \pi r_1^2}$$ and $$\frac{Q+q}{4 \pi r_2^2}$$

zero and $$\frac{\mathrm{Q}-\mathrm{q}}{4 \pi \mathrm{r}_2^2}$$

MHT CET 2021 20th September Morning Shift

MCQ (Single Correct Answer)

-0

A charge of magnitude '2e' and mass '4m' is moving in an electric field $$\overrightarrow E $$. The acceleration imparted to the above charge is

$$\mathrm{\frac{2m}{3Ee}}$$

$$\mathrm{\frac{Ee}{2m}}$$

$$\mathrm{\frac{2Ee}{3m}}$$

$$\mathrm{\frac{3m}{2Ee}}$$

MHT CET 2020 19th October Evening Shift

MCQ (Single Correct Answer)

-0

Van de Graaff generator produces

high voltage and high current

high voltage and low current

low voltage and low current

low voltage and high current

MHT CET 2020 16th October Evening Shift

MCQ (Single Correct Answer)

-0

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

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