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- Question
The merging of a free electron and a hole is called
Options- A. Covalent bonding
- B. Lifetime
- C. Recombination
- D. Thermal energy
- E. None of the above
- Correct Answer
- Recombination
- 1. A diode is in series with 220W. If the voltage across the resister is 4V, what is the current through the diode?
Options- A. 55 A
- B. 55.86 A
- C. 18.2 mA
- D. 16.3 mA
- E. None of the above Discuss
- 2. Suppose a current source has an Ideal current of 10 mA and an internal resistance of 20 MW. For what values of load resistance will the current source appear stiff?
Options- A. 20 k Ohm or more
- B. 200 k Ohm or less
- C. 200 k Ohm or more
- D. 20 km or less
- E. None of the above Discuss
- 3. The equivalent of 1 megohms is:
Options- A. 1 k ohm
- B. 100,000 ohm
- C. one-millionth of an ohm
- D. one million ohms
- E. None of the above Discuss
- 4. The total impedance of a series RLC circuit:
Options- A. is minimum at the resonant frequency
- B. always increases as the applied frequency increases
- C. always decreases as the applied frequency increases
- D. is maximum at the resonant frequency
- E. None of the above Discuss
- 5. Which one of the following statements is true for the voltage in a parallel RC circuit?
Options- A. The voltage always has the same amplitude and phase for every part of the circuit
- B. The total voltage is equal to the sum of the voltages across the resistance and capacitance
- C. The total voltage leads the total current by less than 90 degree
- D. The total voltage is less than the sum of the voltages across the resistance and capacitance
- E. None of the above Discuss
- 6. Which one of the following statements is true for voltage in a series circuit?
Options- A. The total voltage is equal to the sum of the individual voltages in a series circuit
- B. The total voltage in a series circuit is equal to the average value of the individual voltages
- C. The total voltage of a series circuit is equal to the total current divided by the total resistance
- D. The total voltage in a series circuit is always less than the value of the smallest voltage
- E. None of the above Discuss
- 7. When the Q point moves along the load line, the voltage increases when the current
Options- A. Decreases
- B. Stays the same
- C. Increases
- D. Can be any of above
- E. None of the above Discuss
- 8. If the current gain is 200 and the collector current is 100 mA, the base current is
Options- A. 2 mA
- B. 0.5 mA
- C. 2 A
- D. 200 A
- E. None of the above Discuss
- 9. Two diodes are in series. The first diode has a voltage of 0.75 V and the second has a voltage of 0.8 V. If the current through the first diode is 500 mA, what is the current through the second diode
Options- A. 11 mA
- B. 12 mA
- C. 10 mA
- D. 14 mA
- E. None of the above Discuss
- 10. A device that converts mechanical pressure to electrical energy is called a:
Options- A. piezoelectric device
- B. solar cell
- C. photodiode
- D. nicad cell
- E. None of the above Discuss
Electronic Principles problems
Search Results
Correct Answer: 18.2 mA
Correct Answer: 200 k Ohm or less
Correct Answer: one million ohms
Correct Answer: is minimum at the resonant frequency
Correct Answer: The voltage always has the same amplitude and phase for every part of the circuit
Correct Answer: The total voltage is equal to the sum of the individual voltages in a series circuit
Correct Answer: Increases
Correct Answer: 0.5 mA
Correct Answer: 10 mA
Correct Answer: piezoelectric device
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