Question

What is the force between two small charged spheres having charges of 2 * 10^-7c and 3*10-7c placed 30cm apart in air?

Answer 1

0.6 N

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Answer 2

ⒶⒸⒸⓄⓇⒹⒾⓃⒼ ⓉⓄ ⓉⒽⒺ ⓆⓊⒺⓈⓉⒾⓄⓃ

ⒼⒾⓋⒺⓃ

q1 = 2 x 10^-7Ꮯ

q2 = 3 x 10^-7 Ꮯ

r = 30 cm = 30 x 10 ^-2 m

Fc = 1/4πξο x q1q2/r^2

= 9x 10^9x 2x 10^-7 x 3 x 10^-7

--------------------------------------------

(30x 10^-2) ^2

By calculating we will get the answer as 6 x 10^-3 N //