Electronic Principles Current is The flow of charged particles through a material The number of free electrons in an atom The force that causes electrons to flow None of these An imbalance of electrical charges The flow of charged particles through a material The number of free electrons in an atom The force that causes electrons to flow None of these An imbalance of electrical charges ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following properties of a magnetic circuit can be directly compared to voltage in an electrical circuit? Reluctance Flux density Magnetomotive force None of these Number of lines of force Reluctance Flux density Magnetomotive force None of these Number of lines of force ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the phase shift between total current and voltage in the circuit of a 100 ohm resistor connected in parallel with a capacitor that has a reactance of 100 ohm 30 degree 75 degree None of these 180 degree 45 degree 30 degree 75 degree None of these 180 degree 45 degree ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A high-pass filter: None of these passes higher-frequency signals and reduces lower-frequency signals increases the level of all frequencies by a significant amount passes lower-frequency signals and reduces higher-frequency signals has no effect on ac signals None of these passes higher-frequency signals and reduces lower-frequency signals increases the level of all frequencies by a significant amount passes lower-frequency signals and reduces higher-frequency signals has no effect on ac signals ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Suppose a step-down transformer has a turns ration of 5:1. If the secondary current is 1A rms, what is the primary-current? None of these 0.3 A 0.6 A 0.2 A 0.4 A None of these 0.3 A 0.6 A 0.2 A 0.4 A ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The transistor has a current gain of 175. If the base current is 0.1 mA, what is the collector current? 175 mA 1750 mA None of these 1.75 mA 17.5 mA 175 mA 1750 mA None of these 1.75 mA 17.5 mA ANSWER DOWNLOAD EXAMIANS APP
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