Two metal spheres of different sizes are charged such that the electric potential is the same at the surface of each. sphere a has a radius 2 times that of sphere b. let qa and qb be the charges on the two spheres, and let ea and eb be the electric-field magnitudes at the surfaces of the two spheres. what is the ratio qb/qa? what is the ratio eb/ea?

Explanation:

Given

Radius of A is twice of B i.e.

Also Potential of both sphere is same

thus

(b)Ratio of

Electric Field is given by

thus ----1

----2

Divide 2 by 1

a long strand of spaghetti is folded once. if this is cut 20 times, how many pieces of spaghetti will there be? a long strand of spaghetti is folded once. if this is cut 20 times, how many pieces of spaghetti will there be? a long strand of spaghetti is folded once. if this is cut 20 times, how many pieces of spaghetti will there be? a long strand of spaghetti is folded once. if this is cut 20 times, how many pieces of spaghetti will there be? a long strand of spaghetti is folded once. if this is cut 20 times, how many pieces of spaghetti will there be?

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r=rho l/a where a is the area, l is the length and rho is resistivity so the greater the area the lesser the resistance thats why the earth pin is thicker bcos current follow the shortest path, so less resistive .