Three charges each equal to +4nC …
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Three charges each equal to +4nC are placed at the three corners of a square of side 2 cm. Find the electric field at the fourth corner.
Posted by Rahul. S 4 years, 8 months ago
- 2 answers
A Last 4 years, 7 months ago
force by two charge adjacent to fourth side= 2 ×9×10^9× 4×4/(2/100)^2 = 7.2×10^14 Newton
distance from farthest charge = 8^1/2= 2×2^1/2
force by this charge on fourth one= 9×10^9×4×4/((2×2^1/2)/100)^2
= 1.8×10^14 Newton
Total Force = 10^14(7.2+1.8)
= 9×10^14 Newton
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A Last 4 years, 7 months ago
1Thank You