Please explain and answer both parts to get all the points! The attached figure
ID: 2131127 • Letter: P
Question
Please explain and answer both parts to get all the points!
The attached figure shows a test charge q between the two positive charges.
a). Find the force (in newtons) on the test charge for q = -5
The attached figure shows a test charge q between the two positive charges. Find the force (in newtons) on the test charge for q = -5 muC. Give a positive answer if the force is to the right and a negative answer if the force is to the left. find the electric field (in newtons/coulomb) at the position of test charge. Again, supply a positive value if the electric field points to the right and a negative value if it points to the left.Explanation / Answer
F = K q * q1/r1^2 + q2 / r2^2
= 9 * 10^ 9 * 5 * 10^-6 * ( -(2/(0.03)^2 + 3/(0.02)^2 ) * 10^-6
= + 237.5 N
b) E = F/q
E = + 237.5 / ( - 5 * 10^-6 )
= -4.75 * 10^7 N/C