Electronic Principles Which one of. the following phrases most accurately describes the nature of a pulsating dc voltage? None of these The voltage causes current to flow in two directions at the same time The voltage remains at one polarity and at a steady level The voltage remains at one polarity but changes value periodically The voltage reverses polarity periodically None of these The voltage causes current to flow in two directions at the same time The voltage remains at one polarity and at a steady level The voltage remains at one polarity but changes value periodically The voltage reverses polarity periodically ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following equations most directly determines the power dissipation of a resistance when you know the voltage drop and amount of resistance? P = IE None of these I = P/E P = E2/R P = I2R P = IE None of these I = P/E P = E2/R P = I2R 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 10 Ohm 60 Ohm None of these 50 Ohm 100 Ohm or more 10 Ohm 60 Ohm None of these 50 Ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The equivalent of 1 micro A is: None of these 1000 A one-millionth of an ampere one million amperes 10000A None of these 1000 A one-millionth of an ampere one million amperes 10000A 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? Ohmmeter Wattmeter None of these Ammeter Voltmeter Ohmmeter Wattmeter None of these Ammeter Voltmeter ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Reducing the amount of current through an inductor: multiplies the value of inductance by four None of these has no effect on the inductance multiplies the value of inductance by two reduces the value of inductance by one-half multiplies the value of inductance by four None of these has no effect on the inductance multiplies the value of inductance by two reduces the value of inductance by one-half ANSWER DOWNLOAD EXAMIANS APP
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