Electronic Principles If the current gain is 200 and the collector current is 100 mA, the base current is 200 A None of these 0.083333333333333 2 mA 0.5 mA 200 A None of these 0.083333333333333 2 mA 0.5 mA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The transistor has a collector current of 10 mA and a base current of 40 mA. What is the current gain of the transistor? 350 µA 250 µA None of these 300 µA 0.25 µA 350 µA 250 µA None of these 300 µA 0.25 µA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements regarding ac circuits is correct? Current leads the voltage through a resistor Current and voltages are in phase through a resistor All of these None of these Current lags the voltage through a resistor Current leads the voltage through a resistor Current and voltages are in phase through a resistor All of these None of these Current lags the voltage through a resistor ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The core of an electromagnet is said to be in saturation when: frequent changes in the direction of current through the coil causes heating effects in the core material None of these changing the polarity of the current in the coil changes the polarity of the magnetic field around the core the core is permitted to move freely within the coil an increase in current through the coil causes no further increase in the mmf frequent changes in the direction of current through the coil causes heating effects in the core material None of these changing the polarity of the current in the coil changes the polarity of the magnetic field around the core the core is permitted to move freely within the coil an increase in current through the coil causes no further increase in the mmf ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Doubling the operating frequency of a purely capacitive circuit: doubles the amount of total current None of these has no effect on the total circuit current thrice the amount of total current cuts the total current by one-half doubles the amount of total current None of these has no effect on the total circuit current thrice the amount of total current cuts the total current by one-half ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What form of energy is used for creating static electricity? Light energy Chemical energy Mechanical energy None of these Solar energy Light energy Chemical energy Mechanical energy None of these Solar energy ANSWER DOWNLOAD EXAMIANS APP
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