ALTERNATING CURRENTS MODULE 1 LEVEL 2 LATEST VERSION
2024-2025 QUESTIONS WITH CORRECT VERIFIED SOLUTIONS
ALREADY GRADED A+
Which of the following is true of the current in a capacitive circuit? -
ANSWER✔✔It leads the voltage .
In sine wave terminology, the average value is___. - ANSWER✔✔0.637 x
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 in inductance is equal to the change
in___. - ANSWER✔✔Current with respect to time
, Page 2 of 19
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
"ELI the ICE MAN" is used to remember___. - ANSWER✔✔Phase
relationships that exist between voltage and current in an inductive
circuit
According to the power triangle, the apparent power is___. -
ANSWER✔✔Greater than the true power
Which of the following uses electromagnetic induction to transfer
electrical energy from one circuit to another? -
ANSWER✔✔Transformer
, Page 3 of 19
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 of a CT under load will cause a dangerous level
of___. - ANSWER✔✔induced high voltage
What is the hertz rating of an AC circuit if the frequency is 20 cycles per
1/2 second? - ANSWER✔✔40Hz
Given: A circuit has an rms voltage of 120VAC. What is the peak-to-peak
voltage? - ANSWER✔✔340V
A circuit has a peak voltage of 275V. What is the average voltage value?
- ANSWER✔✔175V
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller ressyshii. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $14.29. You're not tied to anything after your purchase.
