Electronic Principles The rotating coil of wire in an electric motor is called the: None of these loop commutator armature brush None of these loop commutator armature brush ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles One henry of inductance is defined as: None of these the amount of counter emf required to reduce a current to 1 A 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 None of these the amount of counter emf required to reduce a current to 1 A 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 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Current is The force that causes electrons to flow The number of free electrons in an atom None of these The flow of charged particles through a material An imbalance of electrical charges The force that causes electrons to flow The number of free electrons in an atom None of these The flow of charged particles through a material An imbalance of electrical charges ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the impedance of a circuit composed of a 100 ohm resistor connected in parallel with an inductor that has a reactance of 200 W? 89.3 ohm 88.8 ohm 224 ohm None of these 77.7 ohm 89.3 ohm 88.8 ohm 224 ohm None of these 77.7 ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The period of a waveform is: the time required to complete one full cycle the time required for the voltage to rise from 10% to 90% of the peak amplitude equal to 0.707 times the peak amplitude None of these the number of cycles completed in one second the time required to complete one full cycle the time required for the voltage to rise from 10% to 90% of the peak amplitude equal to 0.707 times the peak amplitude None of these the number of cycles completed in one second ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The total impedance of a series RLC circuit: is maximum at the resonant frequency is minimum at the resonant frequency None of these always decreases as the applied frequency increases always increases as the applied frequency increases is maximum at the resonant frequency is minimum at the resonant frequency None of these always decreases as the applied frequency increases always increases as the applied frequency increases ANSWER DOWNLOAD EXAMIANS APP
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