General Physics Questions And Answers


Q1. 
Which of the following is the correct statement regarding electrochemical cell?

Ans.
It converts chemical energy to electrical energy


Q2. 
Which is the factor that internal resistance does not depend on?

Ans.
Temperature of the electrolyte


Q3. 
The emf of a cell depends upon concentration of the electrolyte.

Ans.
True


Q4. 
Identify the correct statement from the following about discharging of a cell.

Ans.
Terminal potential difference is lesser than emf of the cell


Q5. 
Which of the following devices is the more accurate one for the measurement of emf?

Ans.
Potentiometer


Q6. 
Identify the factor which does not depend on the resistance of a conductor.

Ans.
Viscosity


Q7. 
Identify the type of materials which develop electric currents in them, when an electric field is applied.

Ans.
Conductors


Q8. 
Which of the following is the most conductive element?

Ans.
Silver


Q9. 
In nature, free charged particles exist in the upper strata of the environment called the stratosphere. State true or false.

Ans.
False


Q10. 
To maintain a steady current through the conductor, some external device must do work. What does the external device provide?

Ans.
Electromotive force