Question

1 K CH.1 CH.2 Problems (13-14): The circuit above with an unknown impedance was connected to a function generator, and the scope picture at the left was saved. Your lab partner claims he wrote down the scales on the oscilloscope and the unknown component values, but now says he can't find them. However, you remember that the larger waveform is Channel 1, and that the frequency was 500 Hz 13. The horizontal time scale is (a) 0.5 ms/div (c) 4 ms/div (b) 1 ms/div (d) 8 ms/di 14. The ratio V2/V1 is most nearly (a) 0.66620° (c) 0.6662-45° (b) 0.666290° (d) 0.666 2-90 15. Typically, the AC voltage function on a low-cost handheld voltmeter would be accurate over a frequency range (a) 0.01 Hz- 10 Hz (c) 10 kHz 10 MHz (b) 10 Hz- 10 kHz (d) 10 MHz - 10 GHz 16. To accurately measure voltage without disturbing a circuit, the voltmeter impedance should be (a) much higher than the impedance of the circuit being measured (b) much lower than the impedance of the circuit being measured (c) equal to the impedance of the circuit being measured (d) the complex conjugate of the impedance of the circuit being measured 17. A laboratory bench supply is set to 5V, 1.0A. It is connected to a 2 ohm resistor. The voltage and current in the resistor will be (a) 5V, 1.0A (b) 2V, 1.0A (c) 5V, 2.5A (d) 2V, 2.5A 18. The lab rules prohibit working alone. The main purpose of this rule is to (a) make sure that your partner stops slacking off (b) reduce feelings of loneliness and depression in the lab (c) have more people available to fight off intruders (d) make sure someone can help in case of electric shock or other injury 19. The color code for aC in cons (a) White Neutral, Black Hot, Green- Ground (b) White Hot, Black Ground, Green Neutral (c) White - Hot, Black Neutral, Green Ground (d) White Neutral, Black Ground, Green - Neutral In the circuit below, the waveform shown is input to the gate of the MOSFET. The MOSFET has a threshold voltage of I V rated at 12V/6000rpm. and has low resistance when on. The motor is 12V su Gnd ims high, 2 ns lou 20. The most likely result would be: (a) the motor runs for 1ms, stops for 2ms, runs for 1ms, etc. (b) the motor runs for 2ms, stops for 1ms, runs for 2ms, etc. (c) the motor runs at approximately 6000 rpm (d) the motor runs at approximately 2000 rpm

Answer 1

TS 怦- 1 9 2-D