Electronic Principles The primary impedance of a transformer is 60 ohm and the secondary impedance is 120 ohm. What is the impedance ratio? 0.25 None of these 4 0.5 180 0.25 None of these 4 0.5 180 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? 0.25 µA 350 µA 300 µA None of these 250 µA 0.25 µA 350 µA 300 µA None of these 250 µA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Doubling the number of turns of wire in an inductor: multiplies the value of inductance by four multiplies the value of inductance by two reduces the value of inductance by one-fourth None of these reduces the value of inductance by one-half multiplies the value of inductance by four multiplies the value of inductance by two reduces the value of inductance by one-fourth None of these reduces the value of inductance by one-half ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A current source has an internal resistance of 100 kW. What is the largest load resistance if the current source must appear stiff? 1 k Ohm None of these 10 k Ohm 2 k Ohm 20 k Ohm 1 k Ohm None of these 10 k Ohm 2 k Ohm 20 k Ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Holes act like: Crystals Atoms None of these Negative charges Positive charges Crystals Atoms None of these Negative charges Positive charges ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the difference between the kinds of charges for an electron and a proton? None of these An electron has a negative charge and a proton has a positive charge An electron has a negative charge and a proton has no charge An electron has a positive charge and a proton has no charge An electron has a positive charge and a proton has a negative charge None of these An electron has a negative charge and a proton has a positive charge An electron has a negative charge and a proton has no charge An electron has a positive charge and a proton has no charge An electron has a positive charge and a proton has a negative charge ANSWER DOWNLOAD EXAMIANS APP
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