Docsity
Log inSign up
Docsity
Prepare for your exams
Prepare for your exams

Study with the several resources on Docsity

Earn points to download
Earn points to download

Earn points by helping other students or get them with a premium plan

Guidelines and tips
Guidelines and tips
Sell on Docsity
Sell on Docsity
Docsity AI
Docsity AI
Log inSign up

Prepare for your exams

Study with the several resources on Docsity

Find documents

Prepare for your exams with the study notes shared by other students like you on Docsity

Search for your university

Find the specific documents for your university's exams

Docsity AINEW

Summarize your documents, ask them questions, convert them into quizzes and concept maps

Explore questions

Clear up your doubts by reading the answers to questions asked by your fellow students

Earn points to download

Earn points by helping other students or get them with a premium plan

Share documents
download point icon20 Points

For each uploaded document

Answer questions
download point icon5 Points

For each given answer (max 1 per day)

All the ways to get free points
Get points immediately

Choose a premium plan with all the points you need

Study Opportunities

Choose your next study program

Get in touch with the best universities in the world. Search through thousands of universities and official partners

Community

Ask the community

Ask the community for help and clear up your study doubts

Free resources

Our save-the-student-ebooks!

Download our free guides on studying techniques, anxiety management strategies, and thesis advice from Docsity tutors

Alternating Currents Exam Questions and Answers, Exams of Electrical and Electronics Engineering

Chamberlain College of NursingElectrical and Electronics Engineering

A set of questions and answers related to alternating currents (ac). It covers fundamental concepts such as transformer turns ratio, induced voltage, frequency, peak-to-peak voltage, average voltage, capacitance, inductive reactance, current flow in ac circuits, phase relationships, power calculations, and the behavior of capacitive and inductive circuits. The questions are designed to test understanding of ac circuit theory and its applications, making it a useful resource for students and professionals in electrical engineering and related fields. Practical problems and conceptual questions, offering a comprehensive review of ac circuit principles. It serves as a valuable study aid for exam preparation and reinforcing key concepts in ac circuit analysis.

Typology: Exams

2025/2026

Available from 12/24/2025

prof_dom92
prof_dom92 🇺🇸

2.6K documents

1 / 6

Toggle sidebar

This page cannot be seen from the preview

Don't miss anything!

bg1
1|P a g e
LEVEL 2 MODULE 1 ALTERNATING
CURRENTS UPDATED EXAM QUESTIONS AND
ANSWERS.
2:1 - correct answer- 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 - correct answer- Opening the secondary
of a CT under load will cause a dangerous level of___.
40Hz - correct answer- What is the hertz rating of an AC circuit
if the frequency is 20 cycles per 1/2 second?
340V - correct answer- Given: A circuit has an rms voltage of
120VAC. What is the peak-to-peak voltage?
175V - correct answer- A circuit has a peak voltage of 275V.
What is the average voltage value?
one-third the applied voltage - correct answer- Each of three
equal capacitors in series has___.
pf3
pf4
pf5

Partial preview of the text

Download Alternating Currents Exam Questions and Answers and more Exams Electrical and Electronics Engineering in PDF only on Docsity!

LEVEL 2 MODULE 1 ALTERNATING

CURRENTS UPDATED EXAM QUESTIONS AND

ANSWERS.

2:1 - correct answer- 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 - correct answer- Opening the secondary of a CT under load will cause a dangerous level of___. 40Hz - correct answer- What is the hertz rating of an AC circuit if the frequency is 20 cycles per 1/2 second? 340V - correct answer- Given: A circuit has an rms voltage of 120VAC. What is the peak-to-peak voltage? 175V - correct answer- A circuit has a peak voltage of 275V. What is the average voltage value? one-third the applied voltage - correct answer- Each of three equal capacitors in series has___.

XL=2piefL - correct answer- The formula for inductive reactance is___. 10A - correct answer- 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 - correct answer- The current in inductive circuit___. Rms values - correct answer- Unless otherwise noted, the calculations in AC circuits use___. Increases - correct answer- When frequency decreases, capacitive reactance___. It leads the voltage. - correct answer- Which of the following is true of the current in a capacitive circuit?

Phase relationships that exist between voltage and current in an inductive circuit - correct answer- "ELI the ICE MAN" is used to remember___. Greater than the true power - correct answer- According to the power triangle, the apparent power is___. Transformer - correct answer- Which of the following uses electromagnetic induction to transfer electrical energy from one circuit to another? 75V AC - correct answer- Given: A transformer has 200 turns in the primary, 100 turns in the secondary, and 150V AC applied to the primary. What is the voltage across the secondary? Unlike-wound transformers - correct answer- Transformers in which the primary and secondary voltages are 180 out of phase are known as___. Across the field at 90 ° - correct answer- Maximum voltage is generated by rotating wire when the conductor is moving___.

10 Hz - correct answer- If the time for one cycle is 0.1 second, the frequency is___. Are in phase - correct answer- If the phase angles of two sine waves are both 0 degrees then the waves___. 400W - correct answer- Calculate the true power in a 2A series RL circuit with a 100 ohms resistor. Frequency increases - correct answer- Inductive reactance increases as the___. Apparent power - correct answer- The power factor can be defined as the ratio of true power to___. Increasing capacitance - correct answer- For a given frequency, the capacitive reactance decreases with___. By some angle between 0 ° and 90 ° - correct answer- In a circuit that has both capacitance and resistance, the current will lead the voltage___.