How to practice topic:ac-circuits

Attempt a question, record the concept and assumptions, then check the available answer. Rework mistakes after revising the relevant concepts. Topic tags can overlap; review the question context.

Questions 1–6 of 6. Imported answers require independent review unless marked reviewed.

Topic practice 6 questionsPage 1 of 1

Question 16

Open question
INMCQ1 markNeeds review
The RLC filter shown below acts as a _______.
Diagram for Instrumentation Engineering question 16

Your answerChoose one option.

Log in to check the answer

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

Question 33

Open question
INNAT1 markNeeds review
In a series

circuit shown in the figure, the current through the resistor lags the AC source voltage by 45°. Let

Ω and

H.
Diagram for Instrumentation Engineering question 33

The frequency of the source is ____ Hz. (rounded off to the nearest integer)

Log in to check the answer

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

Question 25

Open question
INMCQ1 markNeeds review
Three parallel admittances

,

, and

connected in parallel with a voltage source

, draw a total current

from the source. The currents flowing through each of these admittances are

,

, and

, respectively. Let

. The phase relation between

and

is
Your answerChoose one option.

Log in to check the answer

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

Question 56

Open question
INNAT2 marksNeeds review
Consider an AC bridge shown in the figure with

,

,

,

, and a detector

. The source voltage is

. At the bridge balance condition, the frequency of the excitation source

is ________ kHz (rounded off to two decimal places).
Diagram for Instrumentation Engineering question 56


Log in to check the answer

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

Question 62

Open question
INNAT2 marksNeeds review
A series RLC circuit resonates at 750 rad/s for inductance L = 20 mH and resistance R = 10

. The uncertainties in the measurement of L and R are 0.8 mH and 0.3

, respectively. The percentage uncertainty in the measurement of quality factor is ______% (rounded off to one decimal place).

Log in to check the answer

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

Question 65

Open question
INNAT2 marksNeeds review
For the circuit shown in the figure, the active power supplied by the source is ______ W (rounded off to one decimal place).
Diagram for Instrumentation Engineering question 65


Log in to check the answer

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer