Question

at what distance from the larger point charge the electric field is zero​

Answer 1

Answer:

45cm

Explanation:

complete question is this

Two charges 4 μC and 36 μC are placed 60 cm apart. At what distance from the larger charge is the electric field intensity is zero?

concept-electric field is zero between two charges means at point where electric field of both charges are same

given - q1= 4μC and q2=36μC

distance (r)= 60cm

find - distance at which larger charge has electric field is zero

explanation- kq1/r^2=kq2/(60−r) ^2

k×4/r ^2=k×36/(60−r) ^2

1/r2=9/(60−r) ^2

take both side squares

1/r=3/60-r

60-r=3r

60=4r

r=60/4

r=15

zero field from lager charge is 60−15=45cm

#SPJ3

Answer 2

Answer:

45cm

Explanation:

Between two changes, the electric field is zero, which means that the electric fields of both charges are the same at that moment. Assume that $60-r$ is the distance between the 36 micro c charge and that

$k*4/r^2 =k*36/(60-r)^ 2$

$1/r^2=9/(60-r)^2$

both sides of the square root:

$1/r=3/(60-r)\\60-r=3r\\60=4r\\r=15$

zero field from lager charge is $60-15=45cm$