Advertisements
Advertisements
Question
What do you understand by the term electric resistance?
Advertisements
Solution
Electric resistance: The obstruction offered to the passage of electric current by a material is called resistance of the material.
APPEARS IN
RELATED QUESTIONS
Name one D.C. source and one A.C. source.
How are the potential difference (V), current (l) and resistance (R) related?
State the unit of electric potential and define it.
Assuming that the charges of an electron is 1.6 × 10-19 coulombs, the number of electrons passing through a section of wire per sec, when the wire carries a current of one ampere is:
State the kind of charge on a positive ion.
The following Figure represents a negatively charged gold Ieaf electroscope. Label the parts, P, Q, and R and the estate whether each is an insulator or a conductor. Also, indicate the distribution of charges on the system in the diagram.

Write SI unit of
Potential difference
Explain the following:
Potential difference
