Questions

1st copper wire: R = pl/A = pl/ πr2

2ndcopper wire: R’ = p’l’/A’ = pl/(4 πr2) = R/4

If joined in parallel, (1/Req) = (1/R) + (1/R’)

= 1/R + 4/R1/Req= 5/R

Req= R/5

Solely means only, simply or merely.

Cholesterol belongs to lipids class of molecules. Lipids are sometimes called as fats which act as storing energy and structural components of cell membranes.

Small means a little in size or quantity.

Here in the given options, Tiny means same as small.

Hence, Small most nearly means as Tiny.

Most important weather phenomena occur in the layer of Thermosphere.

Most of the weather phenomenon occur in the layer of Troposphere.

A deliverable is a measurable, verifiable work product such as a specification, feasibility study report, detailed design document, or working prototype.