Electronic Principles A transistor has a current gain of 125 and a base current of 30 µA. What is the collector current? 13 mA 3.75 mA None of these 3.2 mA 0.05 mA 13 mA 3.75 mA None of these 3.2 mA 0.05 mA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Doubling the operating frequency of an inductive circuit: multiplies the inductive reactance by 6.28 has no effect on the inductive reactance cuts the inductive reactance in half None of these doubles the amount of inductive reactance multiplies the inductive reactance by 6.28 has no effect on the inductive reactance cuts the inductive reactance in half None of these doubles the amount of inductive reactance ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles An audio transformer has a turn ratio of 9, What is its impedance ratio? None of these 81 6 85 9 None of these 81 6 85 9 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A step-up transformer has a turns ratio of 1:4. If the line voltage is 115 V rms, what is the peak secondary voltage? None of these 651 V 707 V 208 V 700 V None of these 651 V 707 V 208 V 700 V ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following is a statement of KirchhofFs voltage law? The voltage drop across a resistance is proportional to the value of resistance and the amount of current flowing through it 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 total voltage in a parallel circuit is less than the value of the smallest voltage The voltage drop across a resistance is proportional to the value of resistance and the amount of current flowing through it 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 total voltage in a parallel circuit is less than the value of the smallest voltage 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? Reluctance Flux density None of these Number of lines of force Magnetomotive force Reluctance Flux density None of these Number of lines of force Magnetomotive force ANSWER DOWNLOAD EXAMIANS APP
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