The maximum torque is exerted on a current loop when the plane of ...

[newyorker26]

The maximum torque is exerted on a current loop when the plane of the loop is at what angle to the magnetic field?
 
  A) 45.
  B) 0.
  C) 135.
  D) 90.
  E) -45.

Question 2

A wall consists of 2 layers of material: brick in front of an equal thickness of wood. If the respective thermal conductivities of the brick and wood are 1.3 J/m-s-C and 0.15 J/m-s-C,
 
  how does the temperature gradient across the wood compare to the gradient across the brick?

[jaaaaaaa]

Answer to Question 1

B

Answer to Question 2

Tw/Tb = kb/kw = 1.3 / 0.15 = 8.7