two point charges 0.01 micro coulomb and -0.01 micro coulomb are placed 10 cm apart in vacuum calculate the magnitude of electric field intensity at the middle point of the line joining the charges and mention its direction
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The magnitude of electric field intensity at the middle point of the line joining the charges is and direction is towards negative charge .
Given :
Two point charges 0.01 micro coulomb and -0.01 micro coulomb are placed 10 cm apart in vacuum .
Let , us assume that right side is positive and left side is negative and positive charge is at left side .
Now , electric field at the center is given by :
( because electric field due to both the charge is in right direction )
Putting all values in above equation , we get :
Since , sign is positive therefore direction is towards right side .
Hence , this is the required solution .
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Electrostatics
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