Question

There are only two charged particles in a particular region. Particle 1 carries a charge of +q. Particle 2 carries a charge of -2q. They are arranged on the x-axis as shown. Where is is possible to have the net field caused by these two charges equal to zero?

There are only two charged particles in a particular region. Particle 1 carries a charge of+ q. Particle 2 carries a charge of -2 q. They are arranged on the x-axis as shown 1 Where is it possible to have the net field caused by these two charges equal to zero? Selected Answer: Somewhere on the y-axis Answers: Somewhere on the x-axis between the two charges, but not at the origin. Somewhere on the x-axis to the left of q2 Somewhere on the y-axis Somewhere on the x-axis to the right of q1 At the origin

Im thinking its at the origin maybe....

Answer 1

location of charges - hegion - I rregionI1 region- o region- q=+q since net line which do it will field is zero on match the bath be on a-anis the charges Now in region to the right of both charges, the fields from the two charges are in opposite directions, which is what we need for them to cancel How ever In region in we are always closer to the smaller Charge Both the smaller 2 and lager - 29 act to make the field from the positive Charge significantly smaller than that from the negative charge, so they can't concle one another.

In region I and I between the Charges, both vectors point in the same direction so there is no possibility of cancelling out. and in region I the field again point in opposite directions and their is a point where their magnitudes are same. It is at this point where the net electric field is zero So the Some where right answer is - on the x- axis to the left