Electronic Principles Current is The flow of charged particles through a material The force that causes electrons to flow None of these An imbalance of electrical charges The number of free electrons in an atom The flow of charged particles through a material The force that causes electrons to flow None of these An imbalance of electrical charges The number of free electrons in an atom ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles In a step-down transformer, which is larger? Impossible to say Neither Secondary voltage None of these Primary voltage Impossible to say Neither Secondary voltage None of these Primary voltage ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A transistor has a current gain of 125 and a base current of 30 µA. What is the collector current? 13 mA 0.05 mA 3.2 mA 3.75 mA None of these 13 mA 0.05 mA 3.2 mA 3.75 mA None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following is a statement of KirchhofFs voltage law? The algebraic sum of voltages in a loop is equal to zero None of these The algebraic sum of voltages entering and leaving a point is equal to zero The voltage drop across a resistance is proportional to the value of resistance and the amount of current flowing through it The total voltage in a parallel circuit is less than the value of the smallest voltage The algebraic sum of voltages in a loop is equal to zero None of these The algebraic sum of voltages entering and leaving a point is equal to zero The voltage drop across a resistance is proportional to the value of resistance and the amount of current flowing through it The total voltage in a parallel circuit is less than the value of the smallest voltage ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The number of free electrons and holes in intrinsic semiconductor increases when the temperature Stays the same Increases None of these 0oC Decreases Stays the same Increases None of these 0oC Decreases ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is one important thing transistors do? Emit light Regulate voltage Rectify line voltage None of these Amplify weak signals Emit light Regulate voltage Rectify line voltage None of these Amplify weak signals ANSWER DOWNLOAD EXAMIANS APP
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