Problem1. A) Whichis larger, the gravitation attraction between an electron and

Question

Problem1.

A) Whichis larger, the gravitation attraction between an electron and aproton separated by a dis-

tance d or the electricattraction between an electron and a proton separated by adistance d?Justify

your answer by forming aratio of the sizes of the twoforces.

B) Giventhe answer to part A), why is the gravitational force between theearth and a falling eraser

greaterthan the electric force between the earth and the fallingeraser?

C)Compare the size of the gravitational force on an eraser resting onthe floor with the electric force

that thefloor exerts on the eraser.

Explanation / Answer

A electrostatic attraction is greater.because electrostatic forceis1021 times greater than gravitational force b)in this case earth is having huge mass and there is no clue aboutthe charges of earth and eraser(may be neutral) c)we need amount of charges that were present on either ofbodies

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