Electronic Principles
Which one of the following statements is true for the voltage in a parallel RC circuit?

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

ANSWER DOWNLOAD EXAMIANS APP

Electronic Principles
Which one of the following statements most accurately reflects the nature of ac power?

The current in an ac circuit flows in two directions at the same time
None of these
The current in an ac circuit changes direction periodically
The current in an ac circuit flows in one direction, but changes value periodically
The current in an ac circuit flows in one direction at a steady level

ANSWER DOWNLOAD EXAMIANS APP

Electronic Principles
The peak value of a sine waveform is:

None of these
the amplitude at 70.7% of the maximum value
the amplitude at 90% of the maximum value
the maximum positive or negative value
the amplitude at 1.41 times the maximum value

ANSWER DOWNLOAD EXAMIANS APP

Electronic Principles
Which one of the following phrases most accurately describes a purely inductive circuit?

None of these
Inductive reactance provides the only opposition to current flow
Combinations of resistance and inductive reactance provide any 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