Electronic Principles The secondary voltage for a certain power transformer is twice the voltage applied to the primary. The current flowing in the secondary winding will be: Twice the primary current One-half the primary current No more than 10% less than the primary current Same as the primary current None of these Twice the primary current One-half the primary current No more than 10% less than the primary current Same as the primary current None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Voltage is The smallest electrically charged particle The number of free electrons in an atom Trie force that causes electrons to flow The flow of charged particles through a material None of these The smallest electrically charged particle The number of free electrons in an atom Trie force that causes electrons to flow The flow of charged particles through a material None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Thevenin theorem replaces a complicated circuit facing a load by an Ideal current source and series resistor Ideal current source and parallel resistor Ideal voltage source and series resistor None of these Ideal voltage source and parallel resistor Ideal current source and series resistor Ideal current source and parallel resistor Ideal voltage source and series resistor None of these Ideal voltage source and parallel resistor ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A low-pass filter: passes higher-frequency signals and reduces lower-frequency signals has no effect on ac signals reduces the level of all frequencies by a significant amount passes lower-frequency signals and reduces higher-frequency signals None of these passes higher-frequency signals and reduces lower-frequency signals has no effect on ac signals reduces the level of all frequencies by a significant amount passes lower-frequency signals and reduces higher-frequency signals None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles In a step-down transformer, which is larger? Secondary voltage Primary voltage Impossible to say None of these Neither Secondary voltage Primary voltage Impossible to say None of these Neither ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A transformer has a primary voltage of 120 V rms and a secondary voltage of 25 V rms. If the secondary current is 1A rms, what is the primary current? 300 mA 208 mA None of these 200 mA 7.8 mA 300 mA 208 mA None of these 200 mA 7.8 mA ANSWER DOWNLOAD EXAMIANS APP
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