Advertisements
Advertisements
Question
What happens to the specific resistance of a conductor if its length is doubled?
Solution
If length doubles, there is no change in specific resistance.
APPEARS IN
RELATED QUESTIONS
Name two factors on which the specific resistance of a wire depends?
Two wires A and B are made of copper. The wire A is long and thin, while the wire B is short and thick. Which will have more specific resistance?
How does specific resistance of a semi-conductor change with the increase in temperature?
How does (a) resistance, and (b) specific resistance of a wire depend on its (i) length, and (ii) radius?
Electrical resistivity of a given metallic wire depends upon:
A wire of length (l), made of material resistivity ρ is cut into two equal parts. The resistivity of the two parts is equal to:
What is the maximum resistance which can be made using five resistors each of 1/5 Ω?
What is electrical resistivity? In a series electrical circuit comprising a resistor made up of a metallic wire, the ammeter reads 5 A. The reading of the ammeter decreases to half when the length of the wire is doubled. Why?
Two copper wires can have the different ______ but will have same ______.
State the order of specific resistance of a semiconductor.