An alternating current always produces - ANSWER A Magnetic Field
The number of cycles an alternating electric current undergoes per second is known as - ANSWER Frequency
What is the peak voltage in a circuit with an rms voltage of 120vac - ANSWER 170VAC
Level 2 Module 1
QUESTIONS &
ANSWERS(2024
LATEST
UPDATE)CORRECT
100%
An alternating current always produces - ANSWER A Magnetic Field
The number of cycles an alternating electric current undergoes per second is known as - ANSWER
Frequency
What is the peak voltage in a circuit with an rms voltage of 120vac - ANSWER 170VAC
Which of the following conditions exist in a circuit of pure resistance - ANSWER The current and the
voltage are in phase
In a purely resistive AC circuit where 240V is applied across a 10 ohm resistor, the amperage is -
ANSWER 24A
, When the current increases in an AC circuit, what role does inductance play - ANSWER It reduces the
current
All of the following factors increase the inductance of a coil, except a - ANSWER Longer Core
Which of the following conditions exist in a circuit of pure indcutance - ANSWER The voltage and
current are 90 degrees out of phase
Reactance increases with an increase in inductance - ANSWER True
Capacitance is measured in - ANSWER Farads
The total capacitance of two 15 microfarad capacitors connected in parallel is ___ microfarads -
ANSWER 30
The opposition to current flow offered by the capacitance of a circuit is known as - ANSWER
Capacitive Reactance
The total opposition to current flow in an AC circuit is known as - ANSWER Impedance
In sine wave terminology, the average value is - ANSWER .637 * Peak Value
In AC circuits containing only resistance - ANSWER All DC rules and laws apply, including Ohm's law
If the area of the plates of a capacitor is increased, the amount of capacitance - ANSWER Increases
The self-induced voltage across an inductance is equal tot he change in - ANSWER Current with
respect to time
Given: A 30-microfarad capacitor in parallel with a 15-microfarad capacitor. The total capacitance is -
ANSWER 45
Which of the following opposes any change in circuit current - ANSWER Inductance
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