SATHEE: Electrostatics Question 348

Electrostatics Question 348

Question: The intensity of electric field required to balance a proton of mass $1.7 \times 10^{- 27} k g$ and charge $1.6 \times 10^{- 19} C$ is nearly

Options:

A) $1 \times 10^{- 7} V / m$

B) $1 \times 10^{- 5} V / m$

C) $1 \times 10^{7} V / m$

D) $1 \times 10^{5} V / m$

Show Answer

Answer:

Correct Answer: A

Solution:

Since qE = mg or $E = \frac{m g}{q} = \frac{1.7 \times 10^{- 27} \times 9.8}{1.6 \times 10^{- 19}}$

$= 10.0 \times 10^{8} = 1 \times 10^{7} V / m$

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Electrostatics Question 348

Question: The intensity of electric field required to balance a proton of mass 1.7×10−27kg and charge1.6×10−19C is nearly

Options:

Answer:

Solution:

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Question: The intensity of electric field required to balance a proton of mass $1.7 \times 10^{- 27} k g$ and charge $1.6 \times 10^{- 19} C$ is nearly