How many ohms of resistance are in a 120–volt hair dryer that draws 7.6 amps of current?

Asolid round steel rod 6.25 mm in diameter and 375 mm long is rigidly bonded to the end of solid square brass rod 25 mm on a side and 300 mm long. the geometric axes of the bare are along the same line. an axial tensile force of 5.4 kn is applied at the extreme ends of the assembly. for steel e = 200 gpa and for brass e = 90 gpa. determine the total elongation for the assembly.

You notice the birds sitting on the electrical wires which of the following explain why the birds don't get shocked

The unit of resistivity is the: ohm ohm-cm volt coulomb