Resistance of an electrical conductor is proportional to ...
Resistance of an electrical conductor is proportional to its (where, l = length and A = cross-sectional area of the conductor)
A
l
A2
both 'a' & 'b'
Correct answer is D
No explanation has been provided for this answer.
Electrical conductivities of semi-conductors are of the order of __________ ohm/cm. ...
Powder metallurgy process does not make metal powder by ...
Absolute zero pressure can be attained at a temperature of ...
The softness or hardness of a grinding wheel depends upon the type & amount of bonding material ...
Corrosion of metals can not be prevented by its ...
In extrusion of metals, which of the following statements is true ? ...
Nusselt number is related to Grashoff number (Gr) in turbulent & laminar flow respectively, in r...