Which of the following statements correctly explain the existence of a positive force between two electric charges? 1. Both the charges are positive. 2. Both the charges are negative. 3. Both the charges are oppositely charged.

With reference to the electric potential which of the following statements is incorrect?

A fuse is used in main electric supply as a safety device. Which one of the following statements about the fuse is correct?

Which of the following statements are correct about the electrical resistance and resistivity of a wire? 1. Both quantities depend on the area of cross-section of the wire 2. Both depend on the tempe…

Which one of the following statements is not correct?

Which one of the following statements is NOT correct ?