Home
MCQ QUIZ APP DOWNLOAD

What is the correct answer?

4

Resistance of an electrical conductor is proportional to its (where, l = length and A = cross-sectional area of the conductor)

A. A

B. l

C. A2

D. Both 'a' & 'b'

Correct Answer :

D. Both 'a' & 'b'


Related Questions

__________ rubber is generally used for making 'O' rings used for vacuum… Which one is neutral in character? Natural water contains approximately __________ percent of heavy water. A cylindrical rod subjected to a tensile strain within the elastic limit… The units of the rate constant for a second order reaction are With increase in __________ Knocking tendency in a spark ignition petrol… Cold chisel & hammers are made of Surface tension of a liquid Thermistors are used in __________ devices. Photographic plates are coated with Out of the following, which will fracture most readity, when hit with… Boiler draught of 10 mm water column is equivalent to __________ is the hardest material out of the following. For infinite parallel planes having emissivities ε1 & ε2, the… __________ temperature remains constant during adiabatic saturation process… Blow off cock is provided in steam boiler to __________ is not used as the control rod material in a nuclear reactor. Which of the following metals cannot be hot worked at room temperature? With increase in temperature, the electrical conductivity of semiconductors The most suitable material of construction for a sewer to carry sewage… Lead is poured into the joint between two- __________ pipes. If a solid is compressed adiabatically in its elastic range, its __________… A polymer is termed as an 'elastomer', if its percentage elongation is… The softness or hardness of a grinding wheel depends upon the type & amount… Which of the following gases cause global warming? In __________ process, there is an increase in entropy with no degradation… Limestone is added in the blast furnace (during pig iron manufacture)… Angular displacement can be measured suitably by a Magnetic permeability of iron is increased by its Metallic surveying tapes are made of __________ which has a low co-efficient…