Two parallel conductors each of 0.50-m length, separated by 5.0 ...

[madam-professor]

Two parallel conductors each of 0.50-m length, separated by 5.0  10-3 m and carrying 3.0 A in the same direction, will experience what type and magnitude of mutual force? (magnetic permeability in empty space 0 = 4p  10-7 Tm/A)
 a. attractive, 1.8  10-4 N
  c. repulsive, 0.60  10-4 N
  b. repulsive, 1.8  10-4 N
  d. attractive, 0.06  10-4 N

Question 2

A tiny spring, with a spring constant of 1.20 N/m, will be stretched to what displacement by a 0.0060-N force?
 a. 4.2 mm
  c. 6.0 mm
  b. 5.0 mm
  d. 9.4 mm

[ergserg]

Answer to Question 1

A

Answer to Question 2

B

[madam-professor]

Thank you!

[ergserg]

Always glad to help...