Electronic Principles Which one of the following phrases most accurately describes a purely inductive circuit? Combinations of resistance and inductive reactance provide any opposition to current flow None of these Inductive reactance provides the only opposition to current flow The ac voltage lags the current by 90 degree Resistances provide the only opposition to current flow Combinations of resistance and inductive reactance provide any opposition to current flow None of these Inductive reactance provides the only opposition to current flow The ac voltage lags the current by 90 degree Resistances provide the only opposition to current flow 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 Number of lines of force Magnetomotive force Flux density None of these Reluctance Number of lines of force Magnetomotive force Flux density None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The merging of a free electron and a hole is called Recombination Lifetime Thermal energy None of these Covalent bonding Recombination Lifetime Thermal energy None of these Covalent bonding ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the impedance of a circuit composed of a 100 ohm resistor connected in parallel with a capacitor that has a reactance of 100 ohm? None of these 70.7Ohm 250 Ohm 99.3 Ohm 60 Ohm None of these 70.7Ohm 250 Ohm 99.3 Ohm 60 Ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Inductive reactance is measured in units of: volts per second henrys None of these Ohm amperes per second volts per second henrys None of these Ohm amperes per second ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles An intrinsic semiconductor has some holes in it at room temperature. What causes these holes? Doping None of these Valence electrons Thermal energy Free electrons Doping None of these Valence electrons Thermal energy Free electrons ANSWER DOWNLOAD EXAMIANS APP
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