two point charges of 20uC and 45uC are sepearated by distance of 25cm in air Find potential at a point at which the resultant intensity due to the two point charges will be zero
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Amanmishra813
Secondary SchoolPhysics 10+5 pts
Two point charges of2micro c and 8 micro c are placed 12 cm apart. Find the point where electric field intensity is zero
Report by Nirmalskater6534 31.03.2018
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Amanmishra813
Amanmishra813 · Virtuoso
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Deepak241991
Deepak241991 Helping Hand
both are same nature charges therefore neutral point( Net electric field intensity is zero) must lie in-between them.
Q= 2×10^-6. C
q= 8×10^-6. C
let distance of that point from 2micro C charge = X. m
Then, distance from 8micro C charge is= (0.12-X). m
Now,
Use this formula
Electric field intensity at any point = K (charge)/ R^2
Then,
Magnitude of Electric field due to Q = Magnitude of Electric field intensity due to q
And after solving mathematics equation having one variable you will get your answer