Electronic Principles
What kind of battery is most likely included in a cordless electric knife?

Mercury-cell battery
None of these
Zinc-carbon battery
Nicad battery
Lead-acid battery

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
The amount of magnetic flux that is not confined to the core material of an electromagnet
None of these
The force of attraction between the poles of a permanent and temporary magnetic field

ANSWER DOWNLOAD EXAMIANS APP

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

None of these
The total voltage of a parallel circuit is the same as the voltages across each branch
The total voltage in a parallel circuit is always less than the value of the smallest voltage
The total voltage in a parallel circuit is equal to the average value of the individual voltages
The total voltage is equal to the sum of the voltages across the individual branches in a parallel circuit

ANSWER DOWNLOAD EXAMIANS APP

Electronic Principles
The total impedance of a parallel RLC circuit:

always increases as the applied frequency increases
always decreases as the applied frequency increases
None of these
is maximum at the resonant frequency
is equal to the sum of the values of resistance, inductive reactance and capacitive reactance

ANSWER DOWNLOAD EXAMIANS APP

Electronic Principles
Which one of the following statements best applies to a series RLC circuit?

The voltage waveform for each component always has the same amplitude and phase as the applied voltage
All of these
None of these
The current waveform for each component always has the same amplitude and phase as the applied current
The sum of the current is always less than the applied current

ANSWER DOWNLOAD EXAMIANS APP