-10 - (-19) = ___
6
9
-9
-5
-10 - (-19) = -10 + 19 = 19 - 10 = 9
A silk cloth rubbed with a glass rod acquire a charge (-1.6 - 10 -19) C. Then the charge on the glass rod is
A conductor carries a current of 0.2 A. How many electrons will flow in 30 seconds if the charge on one electron is 1.6×10−19 C.