Question

y-0 cm y 60 cm 30 cm B 10 T 10 Ω 10 cm. . v 10 m/s z out of page y A rectangular wire loop is carried in the y-direction at a constant speed of 10 m/s. The loop has a total loop resistance of 10 Ω and is lying in the x-y plane. It is 30 cm long and 10 cm wide. A region of constant and uniform magnetic field of magnitude 10 T pointing in the positive z-direction extends from y-0 to y-60 cm as indicated in the figure. At time t-0 the leading edge of the loop enters the magnetic field region 9. From t-0 to t-0.03 sec a counter clockwise current flows in the circuit. a. True b. False 10. What is the mechanical power that must be supplied to move the loop during the time interval 0ctc0.03 sec? a. 5.0 W b. 10.0 W c. 20.0 W d. 40.0 W e. 100.0 W 11. Between t 0.06 and . Between t-0.06 and 0.09 sec the loop leaves the field regi following statements is true? A negative amount of work is done pulling the loop out of th time interval a. the field region as pulling it op were palled through at a faster speed. b. The same amount of work is done pulling the loop out of into the field region c. Less work would be done if the loop 5 of 13 nau zout of paged-- х R:1 Ω Direction of rotation A coil consisting of two square loops, connected in series, rotates at f 60 revolutions per second, that is o 2T 60 radians/sec. It does so around the y-axis and through a magnetic field of 1 Tesla pointing in the positive z-direction. A snapshot of the rotating coil at time t=0 is shown in the figure. At tine t-o the plane of the coil is in the x-y plane. The loops are 10 cm by 10 cm in dimension and have no resistance of their own. A 1 Ω resistor is connected across the coils as shown. 12. At time t-0 (shown in the figure) a. the current in the loops is flowing clockwise. b. the current in the loop is flowing counter clockwise. c. the current is zero. 13. The maximum value of the current flowing in the loop is a. 1.20 Amp b. 3.77 Amp c. 7.54 Amp d. 56.85 Amp e. 113.70 Amp 14. If the magnetic field were doubled, the power dissipated in the resistor would be forur times as before. a. True b. False 6 of 13 nages

Answer 1

AH S falie 七 1刃 B es doubl