1
BITSAT 2020
MCQ (Single Correct Answer)
+3
-1

Two small conducting spheres of equal radius have charges +20 $$\mu$$ C and $$-$$40 $$\mu$$C respectively and placed at a distance R from each other experience for F1. If they are brought in contact and separated to the same distance, they experience force F2. The ratio of F1 to F2 is

A
1 : 4
B
+8 : 1
C
$$-$$8 : 1
D
1 : 8
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