Electronic Principles Which one of the following kinds of materials has the highest permeability? A paramagnetic material All of these A ferromagnetic material None of these A diamagnetic material A paramagnetic material All of these A ferromagnetic material None of these A diamagnetic material 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? None of these 0.05 mA 3.2 mA 13 mA 3.75 mA None of these 0.05 mA 3.2 mA 13 mA 3.75 mA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles How much current flows through a 0.02-H choke that is operating from a 12-V ac, 100-Hz source? 0.02 A 2.02 A 0.41666666666667 0.955 A None of these 0.02 A 2.02 A 0.41666666666667 0.955 A None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A step-up transformer has a turns ratio of 1:4. If the line voltage is 115 V rms, what is the peak secondary voltage? None of these 208 V 707 V 700 V 651 V None of these 208 V 707 V 700 V 651 V ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the phase shift between total current and voltage, if 100 ohm resistor connected in parallel with an inductor that has a reactance of 200W? None of these 180 degree 90 degree 0 degree 26.6 degree None of these 180 degree 90 degree 0 degree 26.6 degree ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Household light bulbs have a given power rating, and they operate at 120 V. Which one of the following equations most directly provides the current rating of these light bulbs? P = I2R None of these I = P/E P = E2/R P = IE P = I2R None of these I = P/E P = E2/R P = IE ANSWER DOWNLOAD EXAMIANS APP
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