Electronic Principles Most AC power is obtained from: generators batteries lightning oscillators None of these generators batteries lightning oscillators None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Reducing the amount of current through an inductor: has no effect on the inductance reduces the value of inductance by one-half None of these multiplies the value of inductance by two multiplies the value of inductance by four has no effect on the inductance reduces the value of inductance by one-half None of these multiplies the value of inductance by two multiplies the value of inductance by four ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Inductive reactance is measured in units of: Ohm amperes per second volts per second None of these henrys Ohm amperes per second volts per second None of these henrys ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following properties of a magnetic circuit can be directly compared to current in an electrical circuit? Reluctance None of these Number of lines of force Flux density Magnetomotive force Reluctance None of these Number of lines of force Flux density Magnetomotive force ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is one important thing transistors do? Amplify weak signals Emit light Rectify line voltage Regulate voltage None of these Amplify weak signals Emit light Rectify line voltage Regulate voltage None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following phrases best describes residual magnetism? Magnetism that remains in the core of an electromagnet after the current through the coil is turned off The circular magnetic field that surrounds a conductor carrying a current None of these The force of attraction between the poles of a permanent and temporary magnetic field The amount of magnetic flux that is not confined to the core material of an electromagnet Magnetism that remains in the core of an electromagnet after the current through the coil is turned off The circular magnetic field that surrounds a conductor carrying a current None of these The force of attraction between the poles of a permanent and temporary magnetic field The amount of magnetic flux that is not confined to the core material of an electromagnet ANSWER DOWNLOAD EXAMIANS APP
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