Two charges A and B are fixed in place, at different distances from a certain spot. At this spot the potentials due to the two charges are equal. Charge A is 0.15 m from the spot, while charge B is 0.50 m from it. Find the ratio qB/qA of the charges.

Explanation:

We are given that two charges A  and B

Distance of charge A from the spot=

Distance of charge B from the spot=

Potential due to charge A and charge B are equal at the spot.

We have to find the ratio of

According to question

We know that potential at a point

Using the formula

two charges are fixed in place on the x-axis as shown. the charge at x = 0 is negative and has magnitude q = 2 μcoulombs (1 μcoulomb = 10-6 coulombs). the charge at x = d, (d = +12 cm), is positive and has magnitude q = 4 μcoulombs. find a point x = xo along the x-axis at which the electric field is zero.

the inner core.

good luck: )

klicker