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 208 V 651 V 700 V 707 V None of these 208 V 651 V 700 V 707 V 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? 0.6 A 0.4 A 0.2 A None of these 0.3 A 0.6 A 0.4 A 0.2 A None of these 0.3 A ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A flashlight battery has internal resistance of 1W. For what values of load resistance does the flashlight battery appear stiff? 100 Ohm or more 50 Ohm 60 Ohm None of these 10 Ohm 100 Ohm or more 50 Ohm 60 Ohm None of these 10 Ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles If the current gain is 200 and the collector current is 100 mA, the base current is 2 mA 200 A None of these 0.5 mA 0.083333333333333 2 mA 200 A None of these 0.5 mA 0.083333333333333 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles If N1/N2 = 2, and the primary voltage is 120 V, what is the secondary voltage? 0 V 60 V 36 V None of these 40 V 0 V 60 V 36 V None of these 40 V ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles At room temperature an intrinsic semiconductor has None of these many free electrons many holes No holes a few free electrons and holes None of these many free electrons many holes No holes a few free electrons and holes ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS