Author Question: A long straight wire is parallel to one edge and is in the plane of a single-turn rectangular loop ... (Read 72 times)

drink · **on:** Jul 28, 2018

A long straight wire is parallel to one edge and is in the plane of a single-turn rectangular loop as shown. If the loop is changing width so that the distance x changes at a constant rate of 4.0 cm/s, what is the magnitude of the emf induced in the loop at an instant when x = 6.0 cm? Let a = 2.0 cm, b = 1.2 m, and I = 30 A.

a.
5.3 V

b.
2.4 V

c.
4.8 V

d.
2.6 V

e.
1.3 V

Question 2

A loop of wire (resistance = 2.0 m) is positioned as shown with respect to a long wire which carries a current. If d = 1.0 cm, D = 6.0 cm, and L = 1.5 m, what current is induced in the loop at an instant when the current in the wire is increasing at a rate of 100 A/s?