Alternating Current Review Questions
An electric current always produces _____. - correct answer ✔a magnetic
field
The number of cycles an alternating electric current undergoes per second is
known as ____. - correct answer ✔frequency
What is the peak voltage in a circuit with an rms voltage of 120VAC? - correct
answer ✔170 volts
What condition exists in a circuit of pure resistance? - correct answer ✔The
voltage and current are in phase
In a purely resistive AC circuit where 240V is applied across a 10-ohm
resistor, the amperage is ____. - correct answer ✔24A
When the current increases in an AC circuit, what role does inductance play?
- correct answer ✔It reduces the current
What factor will decrease the inductance of a coil? - correct answer ✔A
longer core
What condition exists in a circuit of pure inductance? - correct answer ✔The
voltage and current are 90 degrees out of phase.
True or False? Reactance increases with an increase in inductance. - correct
answer ✔True
An electric current always produces _____. - correct answer ✔a magnetic
field
The number of cycles an alternating electric current undergoes per second is
known as ____. - correct answer ✔frequency
What is the peak voltage in a circuit with an rms voltage of 120VAC? - correct
answer ✔170 volts
What condition exists in a circuit of pure resistance? - correct answer ✔The
voltage and current are in phase
In a purely resistive AC circuit where 240V is applied across a 10-ohm
resistor, the amperage is ____. - correct answer ✔24A
When the current increases in an AC circuit, what role does inductance play?
- correct answer ✔It reduces the current
What factor will decrease the inductance of a coil? - correct answer ✔A
longer core
What condition exists in a circuit of pure inductance? - correct answer ✔The
voltage and current are 90 degrees out of phase.
True or False? Reactance increases with an increase in inductance. - correct
answer ✔True
