At 20 °C a copper wire has a resistance of 4x10-3 and a temperature coefficient of resistivity of 3.9x10-3 (Co)-1, its resistance at 100 °C is​

Aprotein molecule in an electrophoresis gel has a negative charge.the exact charge depends on the ph of the solution, but 30 excesselectrons is typical. what is the magnitude of the electric forceon a protein with this charge in a 1500 n/c electric field?