The left side of the armature in an electric motor is pushed down. When the current changes direction, how is the motion of the
armature affected?
It is pulled up on the left side.
It is pulled up on the right side.
It is pulled toward the commutator.
It is pushed away from the commutator

Determine the change in width a, height b, thickness t when a plate is subjected to the uniform distributed load and is made of material having modulus of elasticity e=230 gpa and poisson's ratio ν=1/3. given : a=400 mm and b= 300 mm also the uniformly distributed load in downward y direction of plate is 2 mn/m and in the positive x direction is 3 mn/m and t=20 mm

Which accounts for an increase in the temperature of a gas that is kept a constant volume

Select all the correct answers. which three statements about electromagnetic radiation are true?