Question

2point charges 1ucoloum and 4ucoloum are placed at X=0 and X=3m on X axis respectively .the position between the two point charges where net electric field is zero is
1m
2m
1.5m
1.25m

Answer 1

Answer:1m

Explanation: let at a distance x from origin electric field intensity is zero

Means electric field due to 1 coulomb charge is equal to electric field due to 4 colombcharge at that point

K(1)/x^2=K(4)/(3-x)^2=1/x=2/3-x=. X=1