Electronic Principles A device that converts mechanical pressure to electrical energy is called a: piezoelectric device solar cell photodiode nicad cell None of these piezoelectric device solar cell photodiode nicad cell None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the power dissipation of a resistance that has 24 V dropped across it and 0.25 A flowing through it? 6 W 3 W None of these 122 W 64 W 6 W 3 W None of these 122 W 64 W ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A certain power transformer has a turns ratio of 5. What voltage can you expect at the secondary winding when you apply 120 V to the primary winding? None of these 0.4 V 4.73 600 V 24 V None of these 0.4 V 4.73 600 V 24 V ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following properties of a magnetic circuit can be directly compared to resistance in an electrical circuit? Retentivity Permeance There is no valid comparison Permeability Reluctance Retentivity Permeance There is no valid comparison Permeability Reluctance ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following phrasers best describes flux density? None of these The opposition to a build-up of magnetic fields The concentration of lines of magnetic force The rate of change of the number of lines of magnetic force The force that maintains lines of force None of these The opposition to a build-up of magnetic fields The concentration of lines of magnetic force The rate of change of the number of lines of magnetic force The force that maintains lines of force ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following equations most directly leads to the resistance of an ordinary household light bulb, assuming that you know the power and voltage rating? P = E2/R None of these R = E2/P P = PR I = P/E P = E2/R None of these R = E2/P P = PR I = P/E ANSWER DOWNLOAD EXAMIANS APP
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