Electronic Principles
In a pure inductor:

ac current and voltage are exactly in phase
ac current lags the voltage by 90 degree
ac current leads the voltage by 90 degree
ac current is converted to dc voltage
None of these

ANSWER DOWNLOAD EXAMIANS APP

Electronic Principles
What is the difference between the kinds of charges for an electron and a proton?

None of these
An electron has a negative charge and a proton has no charge
An electron has a negative charge and a proton has a positive charge
An electron has a positive charge and a proton has no charge
An electron has a positive charge and a proton has a negative charge

ANSWER DOWNLOAD EXAMIANS APP

Electronic Principles
Which one of the following statements is true for the voltages in a series RL circuit?

The voltage always has the same amplitude and phase for every part of the circuit
The total voltage lags the total current by less than 90
The total voltages is equal to the sum of the voltages across the resistance and inductance
None of these
The total voltage is less than the sum of the voltages across the resistance and inductance

ANSWER DOWNLOAD EXAMIANS APP