Electrostatics-Electric Potential (KVPY Stream-SA (Class 11) Physics): Questions 1 - 2 of 3

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Question number: 1

» Electrostatics » Electric Potential

Appeared in Year: 2013

MCQ▾

Question

An electron with an initial speed of 4.0 × 106 ms-1 is brought to rest by an electric field. The mass and charge of an electron are 9 × 10-31 kg and 1.6 × 10-19 C, respectively. Identify the correct statement.

Choices

Choice (4) Response

a.

The electron moves from a region of lower potential to higher potential through a potential difference of 45 V.

b.

The electron moves from a region of higher potential to lower potential through a potential difference of 45 V.

c.

The electron moves from a region of lower potential to higher potential through a potential difference of 11.4 μV.

d.

The electron moves from a region of higher potential to lower potential through a potential difference of 11.4 μV.

Question number: 2

» Electrostatics » Electric Potential

MCQ▾

Question

An electron with an initial speed of 5.5 × 106 ms-1 is brought to rest by an electric field. The mass and charge of an electron are 9 × 10-31 kg and 1.6 × 10-19 C, respectively. Identify the correct statement

Choices

Choice (4) Response

a.

The electron moves from a region of higher potential to lower potential through a potential difference of 22.4 μV.

b.

The electron moves from a region of lower potential to higher potential through a potential difference of 85.07 V.

c.

The electron moves from a region of higher potential to lower potential through a potential difference of 85.07 V

d.

The electron moves from a region of lower potential to higher potential through a potential difference of 22.4 μV.

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