AP EAPCET 2024 - 23th May Morning Shift | Electrostatics Question 2 | Physics

125 identical charged small spheres coalesce to form a big charged sphere. If the electric potential on each small sphere is 60 mV , then the electric potential on the bigger sphere formed is

30 V

15 V

1.5 V

3 V

AP EAPCET 2024 - 23th May Morning Shift

MCQ (Single Correct Answer)

-0

Two particles of charges 4 nC and $Q$ are kept in air with a separation of 10 cm between them. If the electrostatic potential energy of the system is $1.8 \mu \mathrm{~J}$, then $Q=$

12 nC

9 nC

5 nc

7 nC

AP EAPCET 2024 - 22th May Evening Shift

MCQ (Single Correct Answer)

-0

The magnitude of an electric field which can just suspend a deuteron of mass $3.2 \times 10^{-27} \mathrm{~kg}$ freely in ari is

$19.6 \times 10^{-8} \mathrm{NC}^{-1}$

$196 \mathrm{NC}^{-1}$

$1.96 \times 10^{-10} \mathrm{NC}^{-1}$

$0.196 \mathrm{NC}^{-1}$

AP EAPCET 2024 - 22th May Evening Shift

MCQ (Single Correct Answer)

-0

Two charges 5 nC and -2 nC are placed at points $( 5 cm\mathrm{~}$ $0,0)$ and $(23 \mathrm{~cm}, 0,0)$ in a region of space where there is no other external field. The electrostatic potential energy of this charge system is

$10 \times 10^{-7} \mathrm{~J}$

$5 \times 10^{-7} \mathrm{~J}$

$15 \times 10^{-7} \mathrm{~J}$

$25 \times 10^{-7} \mathrm{~J}$

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