Electronic Principles Holes act like: Crystals Negative charges None of these Positive charges Atoms Crystals Negative charges None of these Positive charges Atoms ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Two diodes are in series. The first diode has a voltage of 0.75 V and the second has a voltage of 0.8 V. If the current through the first diode is 500 mA, what is the current through the second diode None of these 10 mA 12 mA 14 mA 11 mA None of these 10 mA 12 mA 14 mA 11 mA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A transistor has a current gain of 125 and a base current of 30 µA. What is the collector current? 3.75 mA 0.05 mA 3.2 mA 13 mA None of these 3.75 mA 0.05 mA 3.2 mA 13 mA None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A power transformer steps 100 V down to 10 V. If the current in its primary winding is 2 A, what is the current in the secondary winding? 50 A 0.20833333333333 None of these 20 A 50 A 0.20833333333333 None of these 20 A ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following phrasers best describes flux density? The rate of change of the number of lines of magnetic force The opposition to a build-up of magnetic fields The concentration of lines of magnetic force The force that maintains lines of force None of these The rate of change of the number of lines of magnetic force The opposition to a build-up of magnetic fields The concentration of lines of magnetic force The force that maintains lines of force None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following phrases most accurately describes a purely capacitive circuit? Resistances provide the only opposition to current flow The ac voltage leads the current by 90 degree Capacitive reactance provides the only opposition to current flow Combinations of resistance and capacitive reactance provide any opposition to current flow None of these Resistances provide the only opposition to current flow The ac voltage leads the current by 90 degree Capacitive reactance provides the only opposition to current flow Combinations of resistance and capacitive reactance provide any opposition to current flow None of these ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS