A 35 micro coulomb point charge is placed 32 cm from an identical 35 micro coulomb charge. How much

work would be required to move a 0.50 micro coulomb test charge from a point midway between them

to a point 12 cm closer to either of the charges?

i got an answer of -2.954 J but im not sure if that is correct.

1 answer

it wont be negative, it takes work to do it.

original PE= kqQ(1/.32+1/.32)
final PE=kqQ(1/(.44) + 1/(.12))

work equals difference in PE.