Electronic Principles A transistor has a current gain of 125 and a base current of 30 µA. What is the collector current? 13 mA 3.2 mA 0.05 mA 3.75 mA None of these 13 mA 3.2 mA 0.05 mA 3.75 mA None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Voltage is The number of free electrons in an atom The flow of charged particles through a material Trie force that causes electrons to flow None of these The smallest electrically charged particle The number of free electrons in an atom The flow of charged particles through a material Trie force that causes electrons to flow None of these The smallest electrically charged particle 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? None of these 300 mA 7.8 mA 200 mA 208 mA None of these 300 mA 7.8 mA 200 mA 208 mA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The dielectric constant of a material is a measure of: how well the material concentrates electrostatic lines of force the amount of opposition to the current flow None of these how well the material concentrates magnetic lines of force the amount of voltage it can withstand before breaking down how well the material concentrates electrostatic lines of force the amount of opposition to the current flow None of these how well the material concentrates magnetic lines of force the amount of voltage it can withstand before breaking down 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? 0.4 A 0.6 A 0.2 A None of these 0.3 A 0.4 A 0.6 A 0.2 A None of these 0.3 A ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The direction of conventional current flow is: from left to right from positive to negative from negative to positive None of these from neutral to positive from left to right from positive to negative from negative to positive None of these from neutral to positive ANSWER DOWNLOAD EXAMIANS APP
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