Electronic Principles The transistor has a collector current of 2 mA. If the current gain is 135, what is the base current? 10.3 µA 7.75 µA 7.8 µA 14.8 µA None of these 10.3 µA 7.75 µA 7.8 µA 14.8 µA None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles How much current flows through a 60-W light bulb that is operating at 120 V? 0.083333333333333 None of these 7200 A 180 A 0.5A 0.083333333333333 None of these 7200 A 180 A 0.5A ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following principles best describes the basic operation of an electromagnet? Current flowing through a conductor generates a magnetic field None of these Current is induced in a conductor that is moving through a magnetic field Like magnetic poles attract, while unlike poles repel Like magnetic poles repel, while unlike poles attract Current flowing through a conductor generates a magnetic field None of these Current is induced in a conductor that is moving through a magnetic field Like magnetic poles attract, while unlike poles repel Like magnetic poles repel, while unlike poles attract ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements best applies to a series RLC circuit? The voltage waveform for each component always has the same amplitude and phase as the applied voltage The sum of the current is always less than the applied current None of these All of these The current waveform for each component always has the same amplitude and phase as the applied current The voltage waveform for each component always has the same amplitude and phase as the applied voltage The sum of the current is always less than the applied current None of these All of these The current waveform for each component always has the same amplitude and phase as the applied current ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The dielectric constant of a material is a measure of: the amount of voltage it can withstand before breaking down the amount of opposition to the current flow None of these how well the material concentrates electrostatic lines of force how well the material concentrates magnetic lines of force the amount of voltage it can withstand before breaking down the amount of opposition to the current flow None of these how well the material concentrates electrostatic lines of force how well the material concentrates magnetic lines of force ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A step-down transformer has turns ration of 5:1. If the primary voltage is 120 Vrms, what is the secondary voltage? 18 V None of these 30 V 24 V 12 V 18 V None of these 30 V 24 V 12 V ANSWER DOWNLOAD EXAMIANS APP
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