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Level 2 Module 1 Alternating Currents correctly answered rated A+ 2023/2024 £18.67   Add to cart
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Level 2 Module 1 Alternating Currents correctly answered rated A+ 2023/2024

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Level 2 Module 1 Alternating Currents 2:1 What is the step-down turns ratio of a transformer with 200 turns in the primary and 100 turns in the secondary? induced high voltage Opening the secondary of a CT under load will cause a dangerous level of___. 40Hz What is the hertz rating of...

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  • November 8, 2023
  • 6
  • 2023/2024
  • Exam (elaborations)
  • Questions & answers

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  • level 2 module 1 alternating currents

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  • NCCER
  • NCCER

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Level 2 Module 1 Alternating Currents

2:1

What is the step-down turns ratio of a transformer with 200 turns in the primary and 100 turns in the
secondary?




induced high voltage

Opening the secondary of a CT under load will cause a dangerous level of___.




40Hz

What is the hertz rating of an AC circuit if the frequency is 20 cycles per 1/2 second?




340V

Given: A circuit has an rms voltage of 120VAC. What is the peak-to-peak voltage?




175V

A circuit has a peak voltage of 275V. What is the average voltage value?




one-third the applied voltage

Each of three equal capacitors in series has___.




XL=2piefL

, The formula for inductive reactance is___.




10A

Given: An AC circuit containing resistance only. What is the current flow if the resistance is 15 ohms and
the voltage is 150v?




Lags the voltage

The current in inductive circuit___.




Rms values

Unless otherwise noted, the calculations in AC circuits use___.




Increases

When frequency decreases, capacitive reactance___.




It leads the voltage.

Which of the following is true of the current in a capacitive circuit?




0.637 x peak value

In sine wave terminology, the average value is___.




All DC rules and laws apply, including Ohm's law

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