Q. A capacitor has a capacitance of 2.9 x 10-5 F. In the charging process, electrons are removed from one plate and placed on the other plate. When the potential difference between the plates is 550 V, how many electrons have been transferred?
Q. If a metric ton is 1.000 103 kg, how many 90 kg people can safely occupy an elevator that can hold a maximum mass of exactly 1 metric ton?