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? None of these 200 mA 208 mA 7.8 mA 300 mA None of these 200 mA 208 mA 7.8 mA 300 mA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of. the following phrases most accurately describes the nature of a pulsating dc voltage? None of these The voltage remains at one polarity and at a steady level The voltage reverses polarity periodically The voltage remains at one polarity but changes value periodically The voltage causes current to flow in two directions at the same time None of these The voltage remains at one polarity and at a steady level The voltage reverses polarity periodically The voltage remains at one polarity but changes value periodically The voltage causes current to flow in two directions at the same time ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What kind of device is a diode? Nonlinear Unipolar Bilateral Linear None of these Nonlinear Unipolar Bilateral Linear None of these 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? 100 A 0.1 A None of these 1000 A 0.41666666666667 100 A 0.1 A None of these 1000 A 0.41666666666667 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles In an intrinsic semiconductor, the number of free electrons None of these Impossible to say Is less than the number of holes Is greater than the number of holes Equals the number of holes None of these Impossible to say Is less than the number of holes Is greater than the number of holes Equals the number of holes ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles How many types of flow are there in a semiconductor? 3 1 None of these 2 3 1 None of these 2 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS