Electronic Principles Which one of the following properties of a magnetic circuit can be directly compared to voltage in an electrical circuit? Number of lines of force Magnetomotive force Flux density Reluctance None of these Number of lines of force Magnetomotive force Flux density Reluctance None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the smallest number of polarities required for current flow? Two - a negative terminal and a positive terminal One - a negative terminal None of these Three - negative, positive and neutral terminals Four - two negative and two positive Two - a negative terminal and a positive terminal One - a negative terminal None of these Three - negative, positive and neutral terminals Four - two negative and two positive ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The graph of current gain versus collector current indicates that the current gain varies slightly varies enormously is contant None of these equals the collector current divided by the base current varies slightly varies enormously is contant None of these equals the collector current divided by the base current ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the capacitive reactance of a 0.1 micro F capacitor that is operating at 1000 Hz? None of these 1590 Ohm 312 Ohm 690 Ohm less than 1 Ohm None of these 1590 Ohm 312 Ohm 690 Ohm less than 1 Ohm 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? 1750 mA None of these 175 mA 17.5 mA 1.75 mA 1750 mA None of these 175 mA 17.5 mA 1.75 mA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the impedance of a circuit composed of a 100 ohm resistor connected in parallel with a capacitor that has a reactance of 100 ohm? None of these 60 Ohm 70.7Ohm 250 Ohm 99.3 Ohm None of these 60 Ohm 70.7Ohm 250 Ohm 99.3 Ohm ANSWER DOWNLOAD EXAMIANS APP
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