Electronic Principles The direction of electron current flow is: from neutral to positive from positive to negative None of these from negative to positive from right to left from neutral to positive from positive to negative None of these from negative to positive from right to left ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Doubling the operating voltage of a purely capacitive circuit: has no effect on the capacitive reactance cuts the capacitive reactance in half None of these doubles the amount of capacitive reactance multiplies the capacitive reactance by 7 has no effect on the capacitive reactance cuts the capacitive reactance in half None of these doubles the amount of capacitive reactance multiplies the capacitive reactance by 7 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? None of these 0.20833333333333 50 A 20 A None of these 0.20833333333333 50 A 20 A ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following devices is most often used for measuring electrical potential difference? Wattmeter Ohmmeter Voltmeter Ammeter None of these Wattmeter Ohmmeter Voltmeter Ammeter None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A low-pass filter: passes lower-frequency signals and reduces higher-frequency signals passes higher-frequency signals and reduces lower-frequency signals has no effect on ac signals None of these reduces the level of all frequencies by a significant amount passes lower-frequency signals and reduces higher-frequency signals passes higher-frequency signals and reduces lower-frequency signals has no effect on ac signals None of these reduces the level of all frequencies by a significant amount ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles One henry of inductance is defined as: the amount of inductance required for generating 1 V of counter emf when the current changes at the rate of 1 A per second the amount of inductance required to change the frequency of a current by 1 Hz the amount of counter emf required to reduce a current to 1 A None of these the number of turns of wire in an inductor multiplied by the amount of current flowing through it the amount of inductance required for generating 1 V of counter emf when the current changes at the rate of 1 A per second the amount of inductance required to change the frequency of a current by 1 Hz the amount of counter emf required to reduce a current to 1 A None of these the number of turns of wire in an inductor multiplied by the amount of current flowing through it ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS