Electronic Principles What form of energy is used to maintain an imbalance of charges between the terminals of a battery? Mechanical energy Electronical energy Solar energy Chemical energy None of these Mechanical energy Electronical energy Solar energy Chemical energy None of these 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 7.8 mA 200 mA 300 mA 208 mA None of these 7.8 mA 200 mA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the turns ratio of a power transformer that shows 50 V at its secondary winding when you apply 150 V to its primary winding? None of these 3 43922 43891 2 None of these 3 43922 43891 2 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following phrases most accurately describes a purely inductive circuit? Resistances provide the only opposition to current flow The ac voltage lags the current by 90 degree None of these Inductive reactance provides the only opposition to current flow Combinations of resistance and inductive reactance provide any opposition to current flow Resistances provide the only opposition to current flow The ac voltage lags the current by 90 degree None of these Inductive reactance provides the only opposition to current flow Combinations of resistance and inductive reactance provide any opposition to current flow ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Doubling the operating voltage of a purely capacitive circuit: None of these multiplies the capacitive reactance by 7 doubles the amount of capacitive reactance cuts the capacitive reactance in half has no effect on the capacitive reactance None of these multiplies the capacitive reactance by 7 doubles the amount of capacitive reactance cuts the capacitive reactance in half has no effect on the capacitive reactance ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What kind of battery is most likely included in a cordless electric knife? Zinc-carbon battery None of these Nicad battery Mercury-cell battery Lead-acid battery Zinc-carbon battery None of these Nicad battery Mercury-cell battery Lead-acid battery ANSWER DOWNLOAD EXAMIANS APP
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