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Two point charges each of 10Mc are placed 10cm apart in air, what is the electric field intensity at midpoint on the line joining the centres of two point charges ( e0= 8.85*10^-12 c^2/Nm^2)

Two point charges each of 10Mc are placed 10cm apart in air, what is the electric field intensity at midpoint on the line joining the centres of two point charges ( e0= 8.85*10^-12 c^2/Nm^2)
 

Grade:12

2 Answers

Ravneet
104 Points
5 years ago
there are two point charges A and B  (10 MC each ) and are 10 cm apart 
CONSIDER A POINT POSITIVE CHARGE AT MIDPOINT OF LINE JOINING THE CHARGES 
Electric field at centre of line joining the two charge by A = [ k(10 X 106) ] / 0.05   [  REPULSIVE FIELD ]
Electric field at centre of line joining the two charge by B = [ k(10 X 106) ] / 0.05  [   REPULSIVE FIELD ]
AT THE MIDPOINT, BOTH FIELD CANCEL EACH OTHER EFFECT 
AND NET ELECTRIC FIELD = 0 
{BECOUSE, THEY HAVE IDENTICAL CHARGE AS WELL AS AT SAME DISTANCE }
 
Khimraj
3007 Points
5 years ago
electric field at centre of two point charges will be zero because electric field due to one charge is cancelled by other.

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