In Figure 28-22, let B be 0.8 T, v= 10.6 m/s, 20 cm, and R 2 ?. \"(a) Find the i

Question

In Figure 28-22, let B be 0.8 T, v= 10.6 m/s, 20 cm, and R 2 ?. "(a) Find the induced emf in the circuit. You currently have 0 submissions for this question. Only 5 submission are allowed You can make 5 more submissions for this question. (b) Find the current in the circuit. A SECTION SECTION You currently have 0 submissions for this question. Only 5 submission are allowed You can make 5 more submissions for this question. " (c) Find the force needed to move the rod with constant velocity assuming negligible friction. Oclockwise N counterclockwise N You currently have 0 submissions for this question. Only 5 submission are allowed. You can make 5 more submissions for this question. (d) Find the power input by the force found in part (c). You currently have 0 submissions for this question. Only 5 submission are allowed You can make 5 more submissions for this question. 5) (e) Find the power delivered to the resistor, P- FR. You currently have 0 submissions for this question. Only 5 submission are allowed You can make 5 more submissions for this question.

Explanation / Answer

a ) Induced emf in the circuit is e = - B l v

= 0.8 T * 10. 6 m/s * 20 *10^-2 m

=1.696 V

b ) current, i = ? / R = 1.696 V / 2 ? = 0.85 A

c ) Force F = i l B = 0.85 A * 0.20 m * 0.8 T = 0.1156 N

d ) Power P = i^2 * R = ( 0.85 A )^2 * 2 ? = 1.445 W

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