Electronics - Transformers

Why should I learn to solve Electronics questions and answers section on "Transformers"?

Learn and practise solving Electronics questions and answers section on "Transformers" to enhance your skills so that you can clear interviews, competitive examinations, and various entrance tests (CAT, GATE, GRE, MAT, bank exams, railway exams, etc.) with full confidence.

Where can I get the Electronics questions and answers section on "Transformers"?

IndiaBIX provides you with numerous Electronics questions and answers based on "Transformers" along with fully solved examples and detailed explanations that will be easy to understand.

Where can I get the Electronics section on "Transformers" MCQ-type interview questions and answers (objective type, multiple choice)?

Here you can find multiple-choice Electronics questions and answers based on "Transformers" for your placement interviews and competitive exams. Objective-type and true-or-false-type questions are given too.

How do I download the Electronics questions and answers section on "Transformers" in PDF format?

You can download the Electronics quiz questions and answers section on "Transformers" as PDF files or eBooks.

How do I solve Electronics quiz problems based on "Transformers"?

You can easily solve Electronics quiz problems based on "Transformers" by practising the given exercises, including shortcuts and tricks.

Exercise : Transformers - General Questions
1.
When does maximum power transfer happen from the source to the load?
When the source resistance is greater than the load resistance
When the source resistance is less than the load resistance
When there is negligible source resistance
When the source resistance equals the load resistance
Answer: Option
Explanation:
No answer description is available. Let's discuss.

2.
A transformer is plugged into a 120 V rms source and has a primary current of 300 mA rms. The secondary is providing 18 V across a 10 omega.gif load. What is the efficiency of the transformer?
88%
90%
92%
95%
Answer: Option
Explanation:
No answer description is available. Let's discuss.

3.
The coefficient of coupling between two coils is 0.45. The first coil has an inductance of 75 mH and the second coil has an inductance of 105 mH. What is the mutual inductance between the coils?
3.54 mH
7.88 mH
39.9 mH
189.3 mH
Answer: Option
Explanation:
No answer description is available. Let's discuss.

4.
Increasing the number of turns of wire on the secondary of a transformer will
increase the secondary current
decrease the secondary current
have no effect on the secondary current
increase the primary current
Answer: Option
Explanation:
No answer description is available. Let's discuss.

5.
What is the turns ratio of the transformer needed to match a 1 komega.gif source resistance to a 160 omega.gif load?
2.5:1
0.4:1
6.25:1
16:1
Answer: Option
Explanation:
No answer description is available. Let's discuss.