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 None of these 7.8 µA 7.75 µA 14.8 µA 10.3 µA None of these 7.8 µA 7.75 µA 14.8 µA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles At room temperature an intrinsic silicon crystal acts approximately like a conductor an insulator a battery None of these a piece of copper wire a conductor an insulator a battery None of these a piece of copper wire ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A certain electromagnet has 1000 turns of wire. How much current must flow through the coil in order to generate an mmf of 100 ampere-turns? 0.41666666666667 None of these 100 A 0.1 A 1000 A 0.41666666666667 None of these 100 A 0.1 A 1000 A ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What form of energy is used to maintain an imbalance of charges between the terminals of a battery? Electronical energy None of these Chemical energy Solar energy Mechanical energy Electronical energy None of these Chemical energy Solar energy Mechanical energy ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles One henry of inductance is defined as: the amount of inductance required to change the frequency of a current by 1 Hz None of these the amount of inductance required for generating 1 V of counter emf when the current changes at the rate of 1 A per second the amount of counter emf required to reduce a current to 1 A the number of turns of wire in an inductor multiplied by the amount of current flowing through it the amount of inductance required to change the frequency of a current by 1 Hz None of these the amount of inductance required for generating 1 V of counter emf when the current changes at the rate of 1 A per second the amount of counter emf required to reduce a current to 1 A the number of turns of wire in an inductor multiplied by the amount of current flowing through it ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles When a parallel RLC circuit is operating at its resonant frequency: inductive reactance is greater than the capacitive reactance the difference between inductive and capacitive reactance is equal to the resistance inductive reactance is equal to the capacitive reactance None of these capacitive reactance is greater than the inductive reactance inductive reactance is greater than the capacitive reactance the difference between inductive and capacitive reactance is equal to the resistance inductive reactance is equal to the capacitive reactance None of these capacitive reactance is greater than the inductive reactance ANSWER DOWNLOAD EXAMIANS APP
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