Electronic Principles The transistor has a collector current of 2 mA. If the current gain is 135, what is the base current? None of these 7.75 µA 14.8 µA 7.8 µA 10.3 µA None of these 7.75 µA 14.8 µA 7.8 µA 10.3 µA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following properties of a magnetic circuit can be directly compared to voltage in an electrical circuit? None of these Reluctance Number of lines of force Flux density Magnetomotive force None of these Reluctance Number of lines of force Flux density Magnetomotive force ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements applies to common auto batteries? Auto batteries are primary dry-cell batteries None of these Auto batteries are secondary wet-cell batteries Auto batteries are primary wet-cell batteries Auto batteries are secondary dry-cell batteries Auto batteries are primary dry-cell batteries None of these Auto batteries are secondary wet-cell batteries Auto batteries are primary wet-cell batteries Auto batteries are secondary dry-cell batteries ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Suppose a step-down transformer has a turns ration of 5:1. If the secondary current is 1A rms, what is the primary-current? 0.6 A 0.3 A 0.2 A 0.4 A None of these 0.6 A 0.3 A 0.2 A 0.4 A None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Doubling the number of turns of wire in an inductor: reduces the value of inductance by one-half None of these reduces the value of inductance by one-fourth multiplies the value of inductance by four multiplies the value of inductance by two reduces the value of inductance by one-half None of these reduces the value of inductance by one-fourth multiplies the value of inductance by four multiplies the value of inductance by two 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 None of these 300 µA 350 µA 250 µA 0.25 µA None of these 300 µA 350 µA 250 µA ANSWER DOWNLOAD EXAMIANS APP
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