Electronic Principles - Section 3 Multiple Questions and Answers.
Exercise Questions ::
Electronic Principles
41. | Which one of the following phrasers best describes flux density? |
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| A. | The concentration of lines of magnetic force |
| B. | The rate of change of the number of lines of magnetic force |
| C. | The opposition to a build-up of magnetic fields |
| D. | The force that maintains lines of force |
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Published by:Michael Daani
Published by:Michael Daani
Published by:Michael Daani
44. | An intrinsic semiconductor has some holes in it at room temperature. What causes these holes? |
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| A. | Doping |
| B. | Valence electrons |
| C. | Free electrons |
| D. | Thermal energy |
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Published by:Michael Daani
45. | Which one of the following statements is true? |
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| A. | Power dissipation of a pure inductor decreases with operating frequency |
| B. | Power dissipation of a pure inductor is at a maximum for dc source voltages |
| C. | Power dissipation of a pure inductor increases with operating frequency |
| D. | There is no meaningful relationship between the power dissipation of a pure inductor and its operating frequency |
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Published by:Michael Daani
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