Electronic Principles How much power is being dissipated by a 1000 W resistance that has 25 V applied to it? 0.625 W 0.24 W 325 kW None of these 80 W 0.625 W 0.24 W 325 kW None of these 80 W ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements most accurately describes the nature of inductive reactance? None of these Inductive reactance is an opposition to current flow in ac circuits Inductive reactance is an opposition to current flow in dc circuits Inductive reactance is another term for counter emf Inductive reactance is a force that tends to overcome the effects of counter emf None of these Inductive reactance is an opposition to current flow in ac circuits Inductive reactance is an opposition to current flow in dc circuits Inductive reactance is another term for counter emf Inductive reactance is a force that tends to overcome the effects of counter emf 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 0.3 A 0.2 A None of these 0.6 A 0.4 A 0.3 A 0.2 A None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The current gain of a transistor is defined as the ratio of the collector current to the supply current base current emitter current collector current None of these supply current base current emitter current collector current None of these 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? 20 A 50 A 0.20833333333333 None of these 20 A 50 A 0.20833333333333 None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following devices is most often used for measuring opposition to current flow in a circuit? Ammeter Voltmeter Wattmeter None of these Ohmmeter Ammeter Voltmeter Wattmeter None of these Ohmmeter ANSWER DOWNLOAD EXAMIANS APP
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