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Instruction:

- This is a FREE online test. DO NOT pay money to anyone to attend this test.
- Total number of questions :
**20**. - Time alloted :
**30**minutes. - Each question carry 1 mark, no negative marks.
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- All the best :-).

1. | A two-terminal variable resistor is known as a |
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Your Answer: Option (Not Answered) Correct Answer: Option C Learn more problems on : Voltage, Current and Resistance Discuss about this problem : Discuss in Forum |

2. | If 24 V are applied across a resistor and there are 10.9 mA of current, the resistance is |
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Your Answer: Option (Not Answered) Correct Answer: Option C Learn more problems on : Ohm's Law Discuss about this problem : Discuss in Forum |

3. | How many watt-hours represent 65 W used for 18 h? |
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Your Answer: Option (Not Answered) Correct Answer: Option B Learn more problems on : Energy and Power Discuss about this problem : Discuss in Forum |

4. | If a 6 V and a 9 V source are connected series aiding, the total voltage is |
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Your Answer: Option (Not Answered) Correct Answer: Option D Learn more problems on : Series Circuits Discuss about this problem : Discuss in Forum |

5. | The total resistance of a circuit is 680 . The percentage of the total voltage appearing across a 47 resistor that makes up part of the total series resistance is |
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Your Answer: Option (Not Answered) Correct Answer: Option D Learn more problems on : Series Circuits Discuss about this problem : Discuss in Forum |

6. | The output of a certain voltage divider is 12 V with no load. When a load is connected, the output voltage |
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Your Answer: Option (Not Answered) Correct Answer: Option A Learn more problems on : Series-Parallel Circuits Discuss about this problem : Discuss in Forum |

7. | The higher the range setting, the less the internal resistance and the greater the load effect of the voltmeter on a circuit. |
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Your Answer: Option (Not Answered) Correct Answer: Option B Learn more problems on : Series-Parallel Circuits Discuss about this problem : Discuss in Forum |

8. | Find the current through |
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Your Answer: Option (Not Answered) Correct Answer: Option D Learn more problems on : Circuit Theorems and Conversions Discuss about this problem : Discuss in Forum |

9. | Sine wave A has a positive-going zero crossing at 45°. Sine wave B has a positive-going zero crossing at 60°. Which of the following statements is true? |
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Your Answer: Option (Not Answered) Correct Answer: Option A Learn more problems on : Alternating Current and Voltage Discuss about this problem : Discuss in Forum |

10. | An 18 V power supply is connected across a coil with a winding resistance of 180 . Current flow in the coil is |
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Your Answer: Option (Not Answered) Correct Answer: Option C Learn more problems on : Inductors Discuss about this problem : Discuss in Forum |

11. | The permeability of a core material is an indication of the ability of the material to establish a magnetic field. |
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Your Answer: Option (Not Answered) Correct Answer: Option A Learn more problems on : Inductors Discuss about this problem : Discuss in Forum |

12. | An induced voltage is produced as a result of a dc voltage. |
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Your Answer: Option (Not Answered) Correct Answer: Option B Learn more problems on : Inductors Discuss about this problem : Discuss in Forum |

13. | What kVA rating is required for a transformer that must handle a maximum load current of 8 A with a secondary voltage of 2 kV? |
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Your Answer: Option (Not Answered) Correct Answer: Option C Learn more problems on : Transformers Discuss about this problem : Discuss in Forum |

14. | The primary of a transformer is connected to a 6 V battery. The turns ratio is 1:3 and the secondary load, |
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Your Answer: Option (Not Answered) Correct Answer: Option A Learn more problems on : Transformers Discuss about this problem : Discuss in Forum |

15. | Total current in an |
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Your Answer: Option (Not Answered) Correct Answer: Option A Learn more problems on : RC Circuits Discuss about this problem : Discuss in Forum |

16. | A 1.2 k resistor is in series with a 15 mH coil across a 10 kHz ac source. The magnitude of the total impedance is |
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Your Answer: Option (Not Answered) Correct Answer: Option B Learn more problems on : RL Circuits Discuss about this problem : Discuss in Forum |

17. | In a series |
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Your Answer: Option (Not Answered) Correct Answer: Option A Learn more problems on : RLC Circuits and Resonance Discuss about this problem : Discuss in Forum |

18. | The reactive voltages, V, cancel at resonance._{C} |
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Your Answer: Option (Not Answered) Correct Answer: Option A Learn more problems on : RLC Circuits and Resonance Discuss about this problem : Discuss in Forum |

19. | The maximum output voltage of a certain low-pass filter is 15 V. The output voltage at the critical frequency is |
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Your Answer: Option (Not Answered) Correct Answer: Option C Learn more problems on : Passive Filters Discuss about this problem : Discuss in Forum |

20. | An R at an input frequency of 12 kHz? |
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Your Answer: Option (Not Answered) Correct Answer: Option C Learn more problems on : Passive Filters Discuss about this problem : Discuss in Forum |

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