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? 200 mA 300 mA None of these 208 mA 7.8 mA 200 mA 300 mA None of these 208 mA 7.8 mA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles How much current flows through a 0.02 micro F capacitor that is operating from a 12-V ac, 100-Hz source? None of these 2.02 A 0.151 mA 0.995 mA 157 raA None of these 2.02 A 0.151 mA 0.995 mA 157 raA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A device that converts mechanical into electrical energy is? generator None of these solar cell chemical cell thermocouple generator None of these solar cell chemical cell thermocouple ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Doubling the operating voltage of a purely capacitive circuit: doubles the amount of capacitive reactance multiplies the capacitive reactance by 7 cuts the capacitive reactance in half None of these has no effect on the capacitive reactance doubles the amount of capacitive reactance multiplies the capacitive reactance by 7 cuts the capacitive reactance in half None of these has no effect on the capacitive reactance ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the turns ratio of a power transformer that shows 50 V at its secondary winding when you apply 150 V to its primary winding? 43922 43891 None of these 2 3 43922 43891 None of these 2 3 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Doubling the number of turns of wire in an inductor: multiplies the value of inductance by two reduces the value of inductance by one-fourth multiplies the value of inductance by four reduces the value of inductance by one-half None of these multiplies the value of inductance by two reduces the value of inductance by one-fourth multiplies the value of inductance by four reduces the value of inductance by one-half None of these ANSWER DOWNLOAD EXAMIANS APP
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