CBSE Class 12-science Answered
Two similar charges repel each other with a force of 44.1 Newton when placed 2cm apart in air.calculate the strength of charge.
Asked by bablukumarbablukumar255 | 23 Jun, 2019, 11:26: AM
Expert Answer
Coulomb force F between two similar charges of q Coulomb which are at distance r m apart in air is given by,
F = 
N
NHence F = 9×109 × q2 / (2×10-2)2 = 44.1 N or q = 14×10-7 C = 1.4 μC
Answered by Thiyagarajan K | 23 Jun, 2019, 02:45: PM
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