Question

QUESTION 4
[18]
Two long current-carrying wires are shown in Fig 1. They are carrying the same current I which are pointing in opposite directions. Their separation is s. A field point Q lies in their plane, a distance ñ from their midline.
4.1 Find the field intensity H from each wire at point Q. (10)
4.2 if ñ>>s, show that the total field at Q is (8)

Answer 1

Consider again fig. 1.12. Now let the 14kg weight hang from the midle of the lower arm (20 cm from the fulcrum). calculate the biceps force and the reaction force force at the joint ...