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? 7.8 mA 300 mA None of these 208 mA 200 mA 7.8 mA 300 mA None of these 208 mA 200 mA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements is true for voltage in a parallel circuit? The total voltage in a parallel circuit is always less than the value of the smallest voltage The total voltage is equal to the sum of the voltages across the individual branches in a parallel circuit The total voltage of a parallel circuit is the same as the voltages across each branch None of these The total voltage in a parallel circuit is equal to the average value of the individual voltages The total voltage in a parallel circuit is always less than the value of the smallest voltage The total voltage is equal to the sum of the voltages across the individual branches in a parallel circuit The total voltage of a parallel circuit is the same as the voltages across each branch None of these The total voltage in a parallel circuit is equal to the average value of the individual voltages ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Holes act like: Positive charges Crystals Negative charges None of these Atoms Positive charges Crystals Negative charges None of these Atoms ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Doubling the operating frequency of an inductive circuit: has no effect on the inductive reactance doubles the amount of inductive reactance cuts the inductive reactance in half None of these multiplies the inductive reactance by 6.28 has no effect on the inductive reactance doubles the amount of inductive reactance cuts the inductive reactance in half None of these multiplies the inductive reactance by 6.28 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles An ideal voltage source has A load-dependent current None of these A load dependent voltage Infinite internal resistance Zero internal resistance A load-dependent current None of these A load dependent voltage Infinite internal resistance Zero internal resistance ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles How much current flows through a 60-W light bulb that is operating at 120 V? 0.5A 7200 A 0.083333333333333 None of these 180 A 0.5A 7200 A 0.083333333333333 None of these 180 A ANSWER DOWNLOAD EXAMIANS APP
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