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Test: Basic AC Parallel Circuits - Electrical Engineering (EE) MCQ


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10 Questions MCQ Test - Test: Basic AC Parallel Circuits

Test: Basic AC Parallel Circuits for Electrical Engineering (EE) 2024 is part of Electrical Engineering (EE) preparation. The Test: Basic AC Parallel Circuits questions and answers have been prepared according to the Electrical Engineering (EE) exam syllabus.The Test: Basic AC Parallel Circuits MCQs are made for Electrical Engineering (EE) 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Basic AC Parallel Circuits below.
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Test: Basic AC Parallel Circuits - Question 1

 In a parallel circuit, we consider _____________ instead of impedance.

Detailed Solution for Test: Basic AC Parallel Circuits - Question 1

In a parallel circuit, we consider admittance instead of impedance, where admittance is the reciprocal of impedance.

Test: Basic AC Parallel Circuits - Question 2

In a parallel circuit, we consider instead of __________

Detailed Solution for Test: Basic AC Parallel Circuits - Question 2

 In a parallel circuit, we consider admittance instead of impedance, where admittance is the reciprocal of impedance.

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Test: Basic AC Parallel Circuits - Question 3

 Which, among the following is the correct expression for impedance?

Detailed Solution for Test: Basic AC Parallel Circuits - Question 3

We know that impedance is the reciprocal of admittance, hence the correct expression for impedance is: Z=1/Y.

Test: Basic AC Parallel Circuits - Question 4

Which, among the following is the correct expression for admittance?

Detailed Solution for Test: Basic AC Parallel Circuits - Question 4

 We know that admittance is the reciprocal of impedance, hence the correct expression for admittance is: Y=1/Z.

Test: Basic AC Parallel Circuits - Question 5

What is the unit of admittance?

Detailed Solution for Test: Basic AC Parallel Circuits - Question 5

 The unit for admittance is ohm-1 because the unit of impedance is ohm and admittance is the reciprocal of impedance.

Test: Basic AC Parallel Circuits - Question 6

As the impedance increases, the admittance ____________

Detailed Solution for Test: Basic AC Parallel Circuits - Question 6

 As the impedance increases, the admittance decreases because admittance is equal to 1/impedance.

Test: Basic AC Parallel Circuits - Question 7

 if the impedance of a system is 4 ohm, calculate its admittance.

Detailed Solution for Test: Basic AC Parallel Circuits - Question 7

We know that: Y=1/Z.
Substituting the value of Z from the question, we get Y= 0.25 ohm-1.

Test: Basic AC Parallel Circuits - Question 8

The admittance of a system is 10 ohm^-1, calculate its impedance.

Detailed Solution for Test: Basic AC Parallel Circuits - Question 8

We know that: Z=1/Y.
Substituting the value of Y from the question, we get Z= 0.1 ohm.

Test: Basic AC Parallel Circuits - Question 9

If two bulbs are connected in parallel and one bulb blows out, what happens to the other bulb?

Detailed Solution for Test: Basic AC Parallel Circuits - Question 9

 In a parallel circuit, if one bulb blows out, it acts as an open circuit. Current does not flow in that branch but it continues to flow in the other branch hence the bulb continues to glow.

Test: Basic AC Parallel Circuits - Question 10

 In A parallel circuit, with any number of impedances, The voltage across each impedance is?

Detailed Solution for Test: Basic AC Parallel Circuits - Question 10

In parallel circuits, the current across the circuits vary whereas the voltage remains the same.

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