Electronic Principles What is the smallest number of polarities required for current flow? None of these Three - negative, positive and neutral terminals One - a negative terminal Four - two negative and two positive Two - a negative terminal and a positive terminal None of these Three - negative, positive and neutral terminals One - a negative terminal Four - two negative and two positive Two - a negative terminal and a positive terminal ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles If a load resistance is 1 kW, a stiff voltage source has a resistance of less than 10 Ohm At least 10 Ohm More than 100 k Ohm None of these Less than 100 k Ohm less than 10 Ohm At least 10 Ohm More than 100 k Ohm None of these Less than 100 k Ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles To get the Norton current, you have to None of these Open the voltage source Short the load resistor Open the load resistor Short the voltage source None of these Open the voltage source Short the load resistor Open the load resistor Short the voltage source 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? 0.05 mA 3.2 mA 3.75 mA 13 mA None of these 0.05 mA 3.2 mA 3.75 mA 13 mA None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the turns ratio for the transformer specified in the above question? None of these 10.738 1.5 0.575 0.707 None of these 10.738 1.5 0.575 0.707 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? 0.2 A 0.3 A 0.6 A None of these 0.4 A 0.2 A 0.3 A 0.6 A None of these 0.4 A ANSWER DOWNLOAD EXAMIANS APP
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