Electronic Principles A certain power transformer has a turns ratio of 5. What voltage can you expect at the secondary winding when you apply 120 V to the primary winding? 4.73 None of these 600 V 24 V 0.4 V 4.73 None of these 600 V 24 V 0.4 V 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? 0.20833333333333 50 A None of these 20 A 0.20833333333333 50 A None of these 20 A ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Current is An imbalance of electrical charges The number of free electrons in an atom The force that causes electrons to flow The flow of charged particles through a material None of these An imbalance of electrical charges The number of free electrons in an atom The force that causes electrons to flow The flow of charged particles through a material None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following equations most directly determines the amount of current flowing through a resistor when you know the value of the resistor and the voltage drop across it? I = ER I = E/R None of these E = I2R E = PR I = ER I = E/R None of these E = I2R E = PR ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles For a pure capacitor: ac current leads the voltage by 90 degree ac current and voltage are exactly in phase None of these ac current lags the voltage by 90 degree ac current is converted to dc voltage ac current leads the voltage by 90 degree ac current and voltage are exactly in phase None of these ac current lags the voltage by 90 degree ac current is converted to dc voltage ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The equivalent of 1 micro A is: 1000 A None of these one million amperes one-millionth of an ampere 10000A 1000 A None of these one million amperes one-millionth of an ampere 10000A ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS