General Physics Questions And Answers


Q1. 
Which among the following can be used to analyze circuits?

Ans.
Kirchhoff’s Law


Q2. 
Find the false statement.

Ans.
Kirchhoff’s 2nd law is applied at nodes


Q3. 
Which of the following is correct when one cell is wrongly connected in series circuit?

Ans.
The total emf increases by 2e


Q4. 
In parallel grouping of cells, we obtain more current.

Ans.
True


Q5. 
When cells are connected incorrectly in series, total internal resistance is also affected.

Ans.
False


Q6. 
Which of the following is an example of a non-ohmic conductor?

Ans.
Silicon


Q7. 
Predict the effect of temperature of the conductor on the drift velocity of electrons.

Ans.
Drift velocity decreases with increasing temperature


Q8. 
The mobility of a charge carrier is the drift velocity acquired by it in a unit cross-sectional area.

Ans.
True


Q9. 
Predict the effect of length of conductor on drift velocity of electrons.

Ans.
Drift velocity decreases with the increasing length of conductor


Q10. 
Give the SI unit of resistivity.

Ans.
ohm metre