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 13 mA 3.75 mA 0.05 mA 3.2 mA None of these 13 mA 3.75 mA 0.05 mA 3.2 mA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A device that converts thermal energy to electrical energy is called a: piezoelectric devices thermocouple solar cell None of these chemical cell piezoelectric devices thermocouple solar cell None of these chemical cell 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? 2.02 A 0.41666666666667 0.02 A None of these 0.955 A 2.02 A 0.41666666666667 0.02 A None of these 0.955 A ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A transformer has a primary voltage of 120 V rms and a secondary voltage of 25 V rms. If the secondary current is 1A rms, what is the primary current? 300 mA 7.8 mA None of these 208 mA 200 mA 300 mA 7.8 mA None of these 208 mA 200 mA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The total impedance of a parallel RLC circuit: None of these is equal to the sum of the values of resistance, inductive reactance and capacitive reactance always decreases as the applied frequency increases always increases as the applied frequency increases is maximum at the resonant frequency None of these is equal to the sum of the values of resistance, inductive reactance and capacitive reactance always decreases as the applied frequency increases always increases as the applied frequency increases is maximum at the resonant frequency ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Doubling the number of turns of wire in an inductor: multiplies the value of inductance by two multiplies the value of inductance by four 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 two multiplies the value of inductance by four reduces the value of inductance by one-fourth None of these reduces the value of inductance by one-half ANSWER DOWNLOAD EXAMIANS APP
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