Electronic Principles Most AC power is obtained from: batteries None of these lightning oscillators generators batteries None of these lightning oscillators generators ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Suppose the peak value of a sinusoidal voltage is 50 V. What is the rms value? 37.4 V None of these 30.4 V 38.74 V 35.4 V 37.4 V None of these 30.4 V 38.74 V 35.4 V ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the total resistance of a parallel circuit that contains two resistors having values of 220 ohm and 470 ohm? 445 ohm 150 ohm 220 ohm None of these 690 ohm 445 ohm 150 ohm 220 ohm None of these 690 ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Assuming 100% efficiency, what is the power being applied to the primary winding of the transformer described in the above question? None of these 20 W 200 W 1000 W 100 W None of these 20 W 200 W 1000 W 100 W ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles For a pure capacitor: ac current is converted to dc voltage ac current and voltage are exactly in phase ac current lags the voltage by 90 degree ac current leads the voltage by 90 degree None of these ac current is converted to dc voltage ac current and voltage are exactly in phase ac current lags the voltage by 90 degree ac current leads the voltage by 90 degree None of these 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 power dissipation of a resistance when you know the voltage drop and current? P = E2/R P = I2R None of these P = IE I = P/E P = E2/R P = I2R None of these P = IE I = P/E ANSWER DOWNLOAD EXAMIANS APP
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