Electronic Principles Which one of the following phrasers best describes flux density? The opposition to a build-up of magnetic fields The concentration of lines of magnetic force None of these The rate of change of the number of lines of magnetic force The force that maintains lines of force The opposition to a build-up of magnetic fields The concentration of lines of magnetic force None of these 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 Doubling the number of turns of wire in an inductor: None of these reduces the value of inductance by one-fourth multiplies the value of inductance by four multiplies the value of inductance by two reduces the value of inductance by one-half None of these reduces the value of inductance by one-fourth multiplies the value of inductance by four multiplies the value of inductance by two reduces the value of inductance by one-half ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following properties of a magnetic circuit can be directly compared to voltage in an electrical circuit? Number of lines of force None of these Magnetomotive force Reluctance Flux density Number of lines of force None of these Magnetomotive force Reluctance Flux density ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles An audio transformer has a turn ratio of 9, What is its impedance ratio? 81 6 None of these 85 9 81 6 None of these 85 9 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Household light bulbs have a given power rating, and they operate at 120 V. Which one of the following equations most directly provides the current rating of these light bulbs? P = E2/R P = I2R None of these I = P/E P = IE P = E2/R P = I2R None of these I = P/E P = IE ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements is true for voltage in a series circuit? The total voltage is equal to the sum of the individual voltages in a series circuit None of these The total voltage in a series circuit is always less than the value of the smallest voltage The total voltage of a series circuit is equal to the total current divided by the total resistance The total voltage in a series circuit is equal to the average value of the individual voltages The total voltage is equal to the sum of the individual voltages in a series circuit None of these The total voltage in a series circuit is always less than the value of the smallest voltage The total voltage of a series circuit is equal to the total current divided by the total resistance The total voltage in a series circuit is equal to the average value of the individual voltages ANSWER DOWNLOAD EXAMIANS APP
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