Exam (elaborations)
NCCER 201: ALTERNATING CURRENT QUESTIONS AND ANSWERS WITH SOLUTIONS 2024
- Course
- Institution
NCCER 201: ALTERNATING CURRENT QUESTIONS AND ANSWERS WITH SOLUTIONS 2024
[Show more]
Content preview
NCCER 201: ALTERNATING CURRENTQUESTIONS AND ANSWERS WITH
SOLUTIONS 2024
A 20-microfarad capacitor is in parallel with a 10-microfarad capacitor. The total capacitance is _____.
10 microfarads
20 microfarads
30 microfarads
40 microfarads - ANSWER 30 Microfarads
Each of two equal capacitors in series has_____.
half the applied voltage
the original value of the applied voltage
twice the applied voltage
four times the applied voltage - ANSWER Half the applied voltage
The self-induced voltage across an inductance is produced by a change in current with respect to ____.
frequency
time
capacitance
input voltage - ANSWER Time
Transformer windings are typically wrapped around a(n) _____.
polyester core
insulated paper core
iron core
copper core - ANSWER Iron Core
What is the apparent power of an AC circuit with a source voltage of 240V and a total current of 15A?
, 1,200W
2,400W
3,600W
7,200W - ANSWER 3,600W
What is the step-down turns ratio of a transformer with 150 turns in the primary and 50 turns in the
secondary?
1:3
3:1
10:1
10:3 - ANSWER 3:1
The opposing force that an inductor presents to the flow of alternating current is called _____.
inductive resistance
inductive reactance
true resistance
inductive capacitance - ANSWER Inductive Reactance
The product of the source voltage and the total current is_____.
true power
apparent power
reactive power
the power factor - ANSWER Apparent Power
The power factor can be defined as the ratio of true power to _____.
reactive power
total resistance
total current
apparent power - ANSWER Apparent Power
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 or Stuvia-credit 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 Performance. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $14.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
78998 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now