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? 24 V 600 V 0.4 V None of these 4.73 24 V 600 V 0.4 V None of these 4.73 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles At room temperature a conductor has low many holes? Only those produced by thermal energy None of these Same number as free electrons less than the free electrons many Only those produced by thermal energy None of these Same number as free electrons less than the free electrons many ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements is true for the impedance of a series RC circuit? None of these The impedance is less than the sum of the resistance and capacitive reactance The impedance is greater than the sum of the resistance and capacitive reactance The impedance is equal to the sum of the resistance and capacitive reactance The impedance is greater than either the resistance or capacitive reactance but less than their sum None of these The impedance is less than the sum of the resistance and capacitive reactance The impedance is greater than the sum of the resistance and capacitive reactance The impedance is equal to the sum of the resistance and capacitive reactance The impedance is greater than either the resistance or capacitive reactance but less than their sum ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A certain electromagnet has 1000 turns of wire. How much current must flow through the coil in order to generate an mmf of 100 ampere-turns? None of these 1000 A 0.41666666666667 100 A 0.1 A None of these 1000 A 0.41666666666667 100 A 0.1 A ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles In a pure inductor: ac current and voltage are exactly in phase None of these ac current leads the voltage by 90 degree ac current lags the voltage by 90 degree ac current is converted to dc voltage ac current and voltage are exactly in phase None of these ac current leads the voltage by 90 degree ac current lags the voltage by 90 degree ac current is converted to dc voltage ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The nucleus of the copper atom contains how many protons? 4 29 None of these 1 18 4 29 None of these 1 18 ANSWER DOWNLOAD EXAMIANS APP
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