or
Subelement A
Principles
Section 8
Conduction
What is the term used to identify an AC voltage that would cause the same heating in a resistor as a corresponding value of DC voltage?
• Cosine voltage.
• Power factor.
Root mean square (RMS).
• Average voltage.
This question does not yet have an explanation! Register to add one

Tags: none

What happens to reactive power in a circuit that has both inductors and capacitors?
• It is dissipated as heat in the circuit.
It alternates between magnetic and electric fields and is not dissipated.
• It is dissipated as inductive and capacitive fields.
• It is dissipated as kinetic energy within the circuit.
This question does not yet have an explanation! Register to add one

Tags: none

Halving the cross-sectional area of a conductor will:
• Not affect the resistance.
• Quarter the resistance.
Double the resistance.
• Halve the resistance.
This question does not yet have an explanation! Register to add one

Tags: none

Which of the following groups is correct for listing common materials in order of descending conductivity?
Silver, copper, aluminum, iron, and lead.
• Lead, iron, silver, aluminum, and copper.
• Iron, silver, aluminum, copper, and silver.
• Silver, aluminum, iron, lead, and copper.
This question does not yet have an explanation! Register to add one

Tags: none

How do you compute true power (power dissipated in the circuit) in a circuit where AC voltage and current are out of phase?
• Multiply RMS voltage times RMS current.
• Subtract apparent power from the power factor.
• Divide apparent power by the power factor.
Multiply apparent power times the power factor.
This question does not yet have an explanation! Register to add one

Tags: none

Assuming a power source to have a fixed value of internal resistance, maximum power will be transferred to the load when:
• The load impedance is greater than the source impedance.