Electrical level 2
module 1 alternating
current|| 25
QUESTIONS||
CORRECT ANSWERS||
Verified
What is the step-down turns ratio of a transformer with 200 turns in the primary and 100 turns in the
secondary? - ANSWER 2:1
Opening the secondary circuit of a current transformer under load will cause a dangerous level of -
ANSWER induced high voltage
What is the frequency of an AC waveform that completes 20 cycles per half second? - ANSWER 40Hz
A circuit has a peak voltage of 275V. What is the average voltage value? - ANSWER 175V
Each of three equal capacitors in series has - ANSWER one-third the applied voltage
The formula for inductive reactance is - ANSWER XL = 2πfL
module 1 alternating
current|| 25
QUESTIONS||
CORRECT ANSWERS||
Verified
What is the step-down turns ratio of a transformer with 200 turns in the primary and 100 turns in the
secondary? - ANSWER 2:1
Opening the secondary circuit of a current transformer under load will cause a dangerous level of -
ANSWER induced high voltage
What is the frequency of an AC waveform that completes 20 cycles per half second? - ANSWER 40Hz
A circuit has a peak voltage of 275V. What is the average voltage value? - ANSWER 175V
Each of three equal capacitors in series has - ANSWER one-third the applied voltage
The formula for inductive reactance is - ANSWER XL = 2πfL
