General Physics Questions And Answers, Set 60

 

General Physics Questions And Answers

Q1. 

Four charges are kept at the corner points of a square. The net force on a charge kept at the center of the square is _________

Ans.

Depends on the nature of the charges

Q2. 

Which among the following is false?

Ans.

Coulomb force is a weak force

Q3. 

Coulomb’s Law is valid for ______

Ans.

Only point charge

Q4. 

Coulomb’s Law is valid for any distance between the particles.

Ans.

False

Q5. 

Which one of the following is similar between electrostatic force and gravitational force?

Ans.

Force is inversely proportional to the distance between the bodies

Q6. 

Superconductors have __________

Ans.

Almost zero resistivity

Q7. 

The attraction is the real proof of an object being charged.

Ans.

False

Q8. 

Why is gold used in the Gold-leaf electroscope?

Ans.

Gold is malleable

Q9. 

What happens to the plates of the apparatus if we measure alternating charge using a Gold-leaf oscilloscope?

Ans.

The plates give a proper divergence

Q10. 

Dr. Gilbert tried to hold a brass rod by hand and induce static electricity in it by friction. Why did he fail?

Ans.

The induced static charge flew through his hand and body to the ground

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