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Grade: Upto college level
        Two concentric conducting spheres of radii R and 2R are carrying charges Q and -2Q respectively. If the charge on the inner sphere is doubled, the potential difference between the two spheres will be?

Ans. two times
6 years ago

Answers : (1)

Akarsh Aithal
36 Points
							since potential difference  is directly proportional to the charges then 
V proportional  to Q1*Q2
V1/V2 = Q1*Q2/Q`1*Q`2
V1/V2 = Q*-2Q/2Q*-2Q
On simpliyfing
 V1/V2 = 2/4
  V1/V2  = 1/2
2V1=V2
						
6 years ago
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