Question

A circular loop of wire with radius r-0.025 m and resistance R-0.3900 is in a region of spatially uniform magnetic field as shown. The magnetic field is directed into the plane of the figure, as shown. At t-o, B-O. The magnetic field then begins increasing with B-(0.380. What is the current (in mA) in the loop at the instant when 8-1.33 b. 18.5 c. 7.41 d. 13.2 12. In which direction is the current? a. Clockwise b. Counter Clockwise Explain your reasoning (you will only get credit for your correct answer if you can provide the proper explanation as to how you got it) A capacitor with a capacitance of 60uF is charged by connecting it to a 12V battery. The capacitor is disconnected from the battery and connected across an inductor with an inductance L=1.50H. 13. What is the angular frequency (in rad/s) of the electrical oscillations? a. 812 b. 105 c. 74 d. 316 14. What is the period (in seconds) of the oscillations? a. 0.0498 b. 0.0596 C.0.0222 d. 0.0971 15. What is the initial charge (in mC) on the capacitor? a. 0.995 b. 0.592 c. 0.720 d. 0.119 16. How much energy (in mu) is initially stored in the capacitor? a. 4.32 b. 15.6 c. 1.01 d. 2.09 What is the magnitude of the charge (in mC) on the capacitor 0.0230 seconds after the 17. connection to the inductor is made? a. 0.263 b. 0.817 c. 0.121 d. 0.542 At 0.0230 seconds, what is the magnitude of the current (in A) in the inductor? 18. a. 0.081b. 0.24 c. 0.050 19. At 0.0230 seconds, how much energy (in mJ) is stored in the capacitor? a. 1.97 b. 2.45 d. 4.00 C.0.982 At 0.0230 seconds, how much energy (in mJ) is stored in the inductor? 20. a. 0320 b. 3.34 C 235 c. 2.35 d. 1.87 A 35.0V battery, a 50.00 resistor, and a 1.25mH inductor are all connected in series with an open switch. The switch is suddenly closed How long (in sec) after the switch is closed will the current through the inductor reach % of its maximum value? d. 8.14 b. 30.7 of How long (in sec) after closing the switch with the energy stored in the inductor reach its maximum value? 22, d. 8.14 b. 30.7 a, 17.3 a. 1.97 b. 2.45 C.0.982 d. 4.00 20. At 0.0230 seconds, how much energy (in mu) is stored in the inductor? b. 3.34 a. 0.320 d. 1.87 c. 2.35 A 35.0V battery, a 50.00 resistor, and a 1.25mH inductor are all connected in series with an open switch. The switch is suddenly closed. 21. How long (in usec) after the switch is closed will the current through the inductor reach % of its maximum value? d. 8.14 b. 30.7 How long (in usec) after closing the switch with the energy stored in the inductor reach its maximum value? 22, d. 8.14 b. 30.7

Answer 1

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