Sign In

Sign in for more features and a better ClassNotes experience.

Forgot password?

Don't have a ClassNotes account?

Homepage

Prepare Standardized Tests
- - NUST Entrance Test (NET)
  - SAT
Notes & Solved Past Papers
Shop
Other

/

/

Company

About Us
Job Openings
Contact Us

Customer zone

Your account
Shipping rates & policies
Refunds & replacements
Order tracking

Stay informed

*Subscribe to our newsletter to receive discount offers, news about content, and other important updates.

Download our app

Coming Soon onApp Store Download onGoogle Play

Terms of Use
Privacy Policy
DMCA Removal
Cookie Policy

© 2017 - 2025 | All rights reserved. Made byClassNotes, Inc.

ClassNotes Premium

Choose Your Plan To Proceed

5 days money back guarantee
Interactive mcqs and flashcards
Ads free experience
MCQs solution steps

5 days money back guarantee
Interactive mcqs and flashcards
Ads free experience
MCQs solution steps

Home
NUST Entrance Test
Physics
Alternating Current

Set 1

Mashaal Masha

Oct 16, 2022

0

Table of Contents

$Alternating current can be transmitted:$
$Alternating current is produced by a voltage source which polarity:$
$Nowadays, most of the electrical energy is produced by A.C generators using:$
$The time interval during which the voltage source changes its polarity once is known as:$
$The most common source of alternating voltage is:$
$The output V of an A.C generator at any instant is given by:$
$Using $\theta=\omega t$ and $\omega=\frac{2\pi}{T}$, the angle through which the coil of A.C generator rotates, when t=T/2 is:$
$Using $V=V_{o} \sin \omega t$ and $\omega=\frac{2\pi}{T}$, the value of alternating voltage V when t=3T/4 is:$
$The wave form of alternating voltage is the graph between:$
$The waveform of alternating voltage is a:$

Advertisement

Choose the correct options for the following questions.

Alternating current can be transmitted:

Difficulty: Easy

Bookmark

A:

To long distance

B:

At very high cost

C:

At very low cost

D:

Both a and c

Alternating current is produced by a voltage source which polarity:

Difficulty: Easy

Bookmark

A:

Remains the same

B:

Reverse after every time interval T/2

C:

Keeps on reversing with time

D:

Both b and c