Discussion
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- Question
7200 mV is the same as
Options- A. 7.2 µV
- B. 7.2 V
- C. 7,200,000 V
- D. 0.0072 µV
- Correct Answer
- 7.2 V
- 1. What are the basic building blocks that all matter is composed of?
Options- A. electrons, neutrons, and protons
- B. two protons for each neutron
- C. two protons for each electron
- D. electrons, neutrons, and charged ions Discuss
- 2. Electrical equipment is protected against excessive current by a(n):
Options- A. fusible wire link
- B. insulated glass container
- C. metal ended coil
- D. circuit opener Discuss
- 3. If voltage across a resistance doubles
Options- A. the current is halved
- B. the resistance doubles
- C. the current is unchanged
- D. none of the above Discuss
- 4. Capacitive reactance values connected in series offer
Options- A. an increase in total XC
- B. a decrease in total XC
- C. no change in total XC
- D. total opposition to voltage in the circuit Discuss
- 5. As a capacitor is being charged, current flowing into the capacitor will:
Options- A. increase
- B. decrease
- C. remain the same
- D. cannot tell Discuss
- 6. The ______________ input makes the summing amplifier circuit possible.
Options- A. virtual ground at the noninverting
- B. virtual ground at the inverting
- C. low-voltage
- D. high-voltage Discuss
- 7. An open in a series circuit will cause maximum voltage across the power supply terminals.
Options- A. True
- B. False Discuss
- 8. After a lamp is turned on, its filament resistance will change to become:
Options- A. less resistive
- B. cooler
- C. brighter
- D. more resistive Discuss
- 9.
Connecting the oscilloscope as shown in the given figure will _____.
Options- A. measure the voltage across the source
- B. measure the voltage across C1, R2, and C2
- C. short R1
- D. short C1, R2, and C2 Discuss
- 10. A differential amplifier has a common-mode gain of 0.2 and a common-mode rejection ratio of 3250. What would the output voltage be if the single-ended input voltage was 7 mV rms?
Options- A. 1.4 mV rms
- B. 650 mV rms
- C. 4.55 V rms
- D. 0.455 V rms Discuss
More questions
Correct Answer: electrons, neutrons, and protons
Correct Answer: fusible wire link
Correct Answer: none of the above
Correct Answer: an increase in total XC
Correct Answer: decrease
Correct Answer: virtual ground at the inverting
Correct Answer: True
Correct Answer: more resistive
Correct Answer: short C1, R2, and C2
Correct Answer: 4.55 V rms
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