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? 4.73 None of these 600 V 24 V 0.4 V 4.73 None of these 600 V 24 V 0.4 V ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the inductive reactance of a 2-H coil operating at 60 Hz? 754 Ohm None of these 120 Ohm 60 Ohm 30 Ohm 754 Ohm None of these 120 Ohm 60 Ohm 30 Ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The equivalent of 1 megohms is: 100,000 ohm one million ohms one-millionth of an ohm None of these 1 k ohm 100,000 ohm one million ohms one-millionth of an ohm None of these 1 k ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Current and voltage are said to be in phase when: their waveforms cross through zero and reach positive and negative peaks at the same time they have the same amplitude and frequency their waveforms are both ac or both dc None of these All of these their waveforms cross through zero and reach positive and negative peaks at the same time they have the same amplitude and frequency their waveforms are both ac or both dc None of these All of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The merging of a free electron and a hole is called Covalent bonding Thermal energy None of these Lifetime Recombination Covalent bonding Thermal energy None of these Lifetime Recombination ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The total inductance of a series inductor circuit is: equal to the sum of the individual inductance values equal to the sum of the individual inductive-reactance values less than the value of the smallest inductor equal to the source voltage divided by total current None of these equal to the sum of the individual inductance values equal to the sum of the individual inductive-reactance values less than the value of the smallest inductor equal to the source voltage divided by total current None of these ANSWER DOWNLOAD EXAMIANS APP
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