CAT Questions

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True, Stress is a factor that contributes to heart disease risk.

More factors that contributes to heart disease risk are blood pressure, cholesterol, smoking, physical inactivity and overeating.

Resistivity :

Resistivity is a measure of the resistance to the flow of electrons. 

Conductivity :

Conductivity is just the inverse of resistivity, σ = 1/ρ, where σ is conductivity and ρ is resistivity.

Example:

Think of a pipe and water, the bigger the pipe, the easier water can flow and thus the lower the resistance. 

Shillong is the capital city of Meghalaya state in India. It is well known tourist place as a hill station in northeast India which attracts tourists all over the world.

Dr. B. R. Ambedkar attended all the three-round table conferences.

Dr. BR Ambedkar was elected to Constituent Assembly from West Bengal.

The resistivity of wire or the metal conductor is depend on the number density of free electrons in the conductor. so its mainly depends on nature of the material

The distance around a circle is called as Circumference. And that in the case of square or rectangle it is called as Perimeter.