Electronic Principles Doubling the operating voltage of a purely capacitive circuit: has no effect on the capacitive reactance None of these multiplies the capacitive reactance by 7 doubles the amount of capacitive reactance cuts the capacitive reactance in half has no effect on the capacitive reactance None of these multiplies the capacitive reactance by 7 doubles the amount of capacitive reactance cuts the capacitive reactance in half 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? Number of lines of force Reluctance Magnetomotive force None of these Flux density Number of lines of force Reluctance Magnetomotive force None of these Flux density ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A power transformer steps 100 V down to 10 V. If the current in its primary winding is 2 A, what is the current in the secondary winding? 50 A 0.20833333333333 None of these 20 A 50 A 0.20833333333333 None of these 20 A ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The value of a capacitor can be made larger by: None of these increasing the area of the plates increasing the frequency of the applied voltage decreasing the area of the plates increasing the voltage applied to the plates None of these increasing the area of the plates increasing the frequency of the applied voltage decreasing the area of the plates increasing the voltage applied to the plates ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The merging of a free electron and a hole is called Thermal energy Lifetime Covalent bonding None of these Recombination Thermal energy Lifetime Covalent bonding None of these Recombination ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The transistor has a collector current of 2 mA. If the current gain is 135, what is the base current? 7.75 µA None of these 7.8 µA 14.8 µA 10.3 µA 7.75 µA None of these 7.8 µA 14.8 µA 10.3 µA ANSWER DOWNLOAD EXAMIANS APP
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