FIGURE 23-4
-A rectangular coil with N turns, length L, and width w, as shown in Figure 23-4, is rotating in a magnetic field B with an angular frequency ω. If the area of the coil is A, what is the induced emf in the coil?
A) ε = NB (Lw) ω sin ωt
B) ε = NBA ω sin ωt
C) ε = NBA (2πf) sin 2πft
D) All of these answers are correct.
E) None of these answers is correct.

Question

FIGURE 23-4 
-A rectangular coil with N turns, length L, and width w, as shown in Figure 23-4, is rotating in a magnetic field B with an angular frequency ω. If the area of the coil is A, what is the induced emf in the coil?
A) ε = NB (Lw) ω sin ωt 
B) ε = NBA ω sin ωt 
C) ε = NBA (2πf) sin 2πft 
D) All of these answers are correct. 
E) None of these answers is correct.

Quizplus · Accepted Answer

The induced emf in a rotating coil is given by ε = NBA ω sin ωt, where N is the number of turns, B is the magnetic field strength, A is the area of the coil, and ω is the angular frequency.

FIGURE 23-4 -A Rectangular Coil with N Turns, Length L, and Width