Alternating Voltage and Current MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Alternating Voltage and Current, a fundamental topic in the field of Basic Electrical Engineering. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Alternating Voltage and Current MCQs are designed to help you grasp the core concepts and excel in solving problems.

In this section, you'll find a wide range of Alternating Voltage and Current mcq questions that explore various aspects of Alternating Voltage and Current problems. Each MCQ is crafted to challenge your understanding of Alternating Voltage and Current principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Basic Electrical Engineering tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Alternating Voltage and Current MCQs are your pathway to success in mastering this essential Basic Electrical Engineering topic.

Note: Each of the following question comes with multiple answer choices. Select the most appropriate option and test your understanding of Alternating Voltage and Current. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

So, are you ready to put your Alternating Voltage and Current knowledge to the test? Let's get started with our carefully curated MCQs!

Alternating Voltage and Current MCQs | Page 4 of 7

Q31.
__________ current is found by dividing the area enclosed by the half cycle by the length of the base of the half cycle.
Discuss
Answer: (b).Average current
Q32.
What is the effective value of current?
Discuss
Answer: (a).RMS current
Q33.
In a sinusoidal wave, average current is always _______ rms current.
Discuss
Answer: (b).Less than
Q34.
For a rectangular wave, average current is ______ rms current.
Discuss
Answer: (c).Equal to
Q35.
Peak value divided by the rms value gives us?
Discuss
Answer: (c).Both peak and crest factor
Q36.
Calculate the crest factor if the peak value of current is 10A and the rms value is 2A.
Discuss
Answer: (a).5
Q37.
If maximum value of current is 5√2 A, what will be the value of RMS current?
Discuss
Answer: (b).5 A
Q38.
If Im is the maximum value of a sinusoidal voltage, what is the instantaneous value?
Discuss
Answer: (d).i=Imsinθ or i=Imcosθ
Q39.
Average value of current over a half cycle is?
Discuss
Answer: (a).0.67Im
Q40.
What is the correct expression for the rms value of current?
Discuss
Answer: (b).Irms=Im/√2
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