I blindly accepted your answer and got it wrong, of course. I realized afterwards that the dimensions must be coulomb-meters (which is how I would state it -- somehow meter-coulombs (m C) sounds funny to me).

Hang on... First, the question explicitly hasa dot between m & C on the cahllenge page, suggesting a multiplication. Also, the SI units of an Electric Dipole Moment is, according to the page on wikipedia that you have referred to, the coulomb-meter (http://en.wikipedia.org/wiki/Electricdipolemoment). This also seems to be dimensionally correct, based on the equation stated in the challenge. What have I missed?

## Comments

Sort by:

TopNewestI blindly accepted your answer and got it wrong, of course. I realized afterwards that the dimensions must be coulomb-meters (which is how I would state it -- somehow meter-coulombs (m C) sounds funny to me).

Log in to reply

Yes, the answer is desired in millicoulombs.

Log in to reply

Hang on... First, the question explicitly hasa dot between m & C on the cahllenge page, suggesting a multiplication. Also, the SI units of an Electric Dipole Moment is, according to the page on wikipedia that you have referred to, the coulomb-meter (http://en.wikipedia.org/wiki/Electric

dipolemoment). This also seems to be dimensionally correct, based on the equation stated in the challenge. What have I missed?Log in to reply

You have missed nothing.

I was sorely mistaken, and the correct unit is in fact the coulomb-meter.

Log in to reply