Electric Charge MCQ Level - 2

# Electric Charge MCQ Level - 2 - IIT JAM

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## 10 Questions MCQ Test - Electric Charge MCQ Level - 2

Electric Charge MCQ Level - 2 for IIT JAM 2023 is part of IIT JAM preparation. The Electric Charge MCQ Level - 2 questions and answers have been prepared according to the IIT JAM exam syllabus.The Electric Charge MCQ Level - 2 MCQs are made for IIT JAM 2023 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Electric Charge MCQ Level - 2 below.
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Electric Charge MCQ Level - 2 - Question 1

### Effective mass of an electron in an semiconductor

Detailed Solution for Electric Charge MCQ Level - 2 - Question 1

The correct answer is: can never be negative

Electric Charge MCQ Level - 2 - Question 2

### Two identical, insulated sphere have different charges. Sphere 1 has –9.6 × 10–18 C. Sphere 2 has 60 excess electron. If the two sphere are brought into contact and then separated. What charge will each have?

Electric Charge MCQ Level - 2 - Question 3

### A charge +q is placed (a, 0, 0) and another +q is placed (-a, 0, 0). A charge –q is placed at the origin. If it is slightly displaced along y-axis. Then

Detailed Solution for Electric Charge MCQ Level - 2 - Question 3

The correct answer is: It will execute SHM

Electric Charge MCQ Level - 2 - Question 4

The SI unit of electric flux is

Detailed Solution for Electric Charge MCQ Level - 2 - Question 4

Electric flux has SI units of volt metres (V m), or, equivalently, newton metres squared per coulomb (N m2 C−1). Thus, the SI base units of electric flux are kg·m3·s−3·A−1

Electric Charge MCQ Level - 2 - Question 5

Which of the following statement concerning lightning is/are correct?
1. It is a result of charging
2. The charge at the bottom of the clouds and those induced on the top of the roofs of buildings form a very strong electric field.
3. Lightning cause the thunder we hear

Detailed Solution for Electric Charge MCQ Level - 2 - Question 5

a) Lightning is a naturally occurring electrostatic discharge during which two electrically charged regions in the atmosphere or ground temporarily equalize themselves, causing the instantaneous release of as much as one gigajoule of energy.

b) The charge at the bottom of the clouds and those induced on the top of the roofs of buildings form a very strong electric field.

c) Lightning causes thunder, a sound from the shock wave which develops as gases in the vicinity of the discharge experience a sudden increase in pressure.

Electric Charge MCQ Level - 2 - Question 6

A negative charged rod is held near a conductor X that is earthed shown in the figure. Here X is

Detailed Solution for Electric Charge MCQ Level - 2 - Question 6

The correct answer is: Positively charged and at earth potential

Electric Charge MCQ Level - 2 - Question 7

Which of the following should not be done during lightning.
1. Stay in a building with a lightning conductor installed on the roof.
2. Stand near a window with a metal frame.
3. Crouch down in an open field.

Detailed Solution for Electric Charge MCQ Level - 2 - Question 7

1 and 3 are the preventive measures to stay safe from lightning

Electric Charge MCQ Level - 2 - Question 8

The diagram shows five charged metal spheres suspended by string. The charge of each sphere is +5C, –2C, +3C, –4C and +2C as shown. If the five spheres simultaneously contact together. Find the net charge on them.

Detailed Solution for Electric Charge MCQ Level - 2 - Question 8

For finding the net charge we will add all the charges on all spheres.

= +5C + (-2C) + (+3C) + (-4C) + (2C)

Electric Charge MCQ Level - 2 - Question 9

Two spheres P and Q are supported on two insulated stands and placed next to each other. Sphere P has a charge of +10 and sphere Q is neutral which of the following statement is correct?

Detailed Solution for Electric Charge MCQ Level - 2 - Question 9

The correct answer is: After some time, Q is still neutral

Electric Charge MCQ Level - 2 - Question 10

A charged of Q coulomb is placed on a solid piece of metal of irregular shape the charge will distribute itself.

Detailed Solution for Electric Charge MCQ Level - 2 - Question 10

The correct answer is: Such that the potential energy of the system is minimised

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