NCCER 26201-20 ALTERNATING CURRENT QUESTIONS AND ANSWERS WITH SOLUTIONS 2024

NCCER 26201-20 ALTERNATING
CURRENT QUESTIONS AND ANSWERS
WITH SOLUTIONS 2024
An electric current always produces ? - ANSWER A magnetic field



The number or 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 120 VAC ? - ANSWER 170 VAC



Wich of the following conditions exist in a circuit of pure resistance ? - 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 ? -
ANSWER 24A



When the current increases in an AC circuit, what role does inductance play ? - ANSWER It reduces the
current



Which of the following coils is likely to show the lowest inductance? - ANSWER A coil with a narrow coil



Which of the following conditions exists in a circuit of pure inductance? - ANSWER The voltage and
current are 90 degrees out of phase



Reactance increases with an increase in? - ANSWER Inductance



Capacitance is measured in ? - ANSWER Farads



The total capacitance of two 15uf capacitors connected in parallel is? - ANSWER 30uf