Electronic Principles What is a free electron? An electron that costs nothing An electron that has been freed from its parent atom None of these An electron that has no electrical charge An electron that has twice the amount of charge of a normal electron An electron that costs nothing An electron that has been freed from its parent atom None of these An electron that has no electrical charge An electron that has twice the amount of charge of a normal electron ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following equations most directly determines the power dissipation of a resistance when you know the power dissipation of a resistance when you know the voltage drop and current? P = IE P = I2R P = E2/R None of these I = P/E P = IE P = I2R P = E2/R None of these I = P/E ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles At room temperature a conductor has low many holes? Only those produced by thermal energy None of these less than the free electrons many Same number as free electrons Only those produced by thermal energy None of these less than the free electrons many Same number as free electrons ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements is true for the voltage in a parallel RL circuit? The voltage always has the same amplitude and phase for every part of the circuit The total voltages is less than the sum of the voltages across the resistance and inductance The total voltage is equal to the sum of the voltages across the resistance and inductance None of these The total voltage lags the total current by less than 90 The voltage always has the same amplitude and phase for every part of the circuit The total voltages is less than the sum of the voltages across the resistance and inductance The total voltage is equal to the sum of the voltages across the resistance and inductance None of these The total voltage lags the total current by less than 90 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A step-down transformer has turns ration of 5:1. If the primary voltage is 120 Vrms, what is the secondary voltage? 30 V 12 V None of these 18 V 24 V 30 V 12 V None of these 18 V 24 V ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What kind of battery is most likely included in a cordless electric knife? Mercury-cell battery Lead-acid battery Nicad battery None of these Zinc-carbon battery Mercury-cell battery Lead-acid battery Nicad battery None of these Zinc-carbon battery ANSWER DOWNLOAD EXAMIANS APP
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