Forum

Satkriti Roao
@satkriti-roao
Forum Home   |   Recent Posts
Illustrious Member
Joined: Jun 14, 2021
Last seen: Aug 6, 2021
Profile Activity
Topics: 2248 / Replies: 1
AllTopicsReplies
Topic
State and explain Fleming’s right hand rule.
5 years ago
Forum
Magnetic Effects of Electric Current
Replies: 0
Views: 96
Topic
(a) What is the difference between alternating current and direct current? (b) What type of current is given by (i) a dry cell, and (ii) a Power House generator?
5 years ago
Forum
Magnetic Effects of Electric Current
Replies: 0
Views: 130
Topic
(a) Explain the principle of an electric generator. (b) State two ways in which the current induced in the coil of a generator could be increased.
5 years ago
Forum
Magnetic Effects of Electric Current
Replies: 0
Views: 114
Topic
Two circular coils A and B are placed close to each other. If the current in coil A is changed, will some current be induced in coil B? Give reason for your answer.
5 years ago
Forum
Magnetic Effects of Electric Current
Replies: 0
Views: 268
Topic
Complete the following sentence : A generator with commutator produces ………………… current.
5 years ago
Forum
Magnetic Effects of Electric Current
Replies: 0
Views: 393
Topic
List three sources of magnetic fields.
5 years ago
Forum
Magnetic Effects of Electric Current
Replies: 0
Views: 319
Topic
Why are Thermal Power Stations usually located near a river?
5 years ago
Forum
Magnetic Effects of Electric Current
Replies: 0
Views: 371
Topic
What is the major difference between the simple alternator and most practical alternators?
5 years ago
Forum
Magnetic Effects of Electric Current
Replies: 0
Views: 95
Topic
When current is ‘switched on’ and ‘switched off’ in a coil, a current is induced in another coil kept near it. What is this phenomenon known as?
5 years ago
Forum
Magnetic Effects of Electric Current
Replies: 0
Views: 71
Topic
When a wire is moved up and down in a magnetic field, a current is induced in the wire. What is this phenomenon known as?
5 years ago
Forum
Magnetic Effects of Electric Current
Replies: 0
Views: 97
Topic
What is the function of brushes in an electric generator?
5 years ago
Forum
Magnetic Effects of Electric Current
Replies: 0
Views: 89
Topic
State whether the following statements are true or false: (a) A generator works on the principle of electromagnetic induction.
5 years ago
Forum
Magnetic Effects of Electric Current
Replies: 0
Views: 323
Topic
What change should be made in an a.c. generator so that it may become a d.c. generator?
5 years ago
Forum
Magnetic Effects of Electric Current
Replies: 0
Views: 190
Topic
The blood groups of 30 students of Class VIII are recorded as follows: A, B, O, O, AB, O, A, O, B, A, O, B, A, O, O, A, AB, O, A, A, O, O, AB, B, A, O, B, A, B, O.
5 years ago
Forum
Statistics
Replies: 0
Views: 288
Topic
Give five examples of data that you can collect from your day-to-day life. Classify the data in the Question above as primary or secondary data.
5 years ago
Forum
Statistics
Replies: -1
Views: 147
Topic
Give five examples of data that you can collect from your day-to-day life.
5 years ago
Forum
Statistics
Replies: 0
Views: 437
Topic
The diameter of a sphere is decreased by 25%. By what percent does its curved surface area decrease?
5 years ago
Forum
Surface Areas and Volumes
Replies: 0
Views: 389
Topic
The front compound wall of a house is decorated by wooden spheres of diameter 21 cm, placed on small supports as shown in fig. Eight such spheres are used forth is purpose, and are to be painted silver.
5 years ago
Forum
Surface Areas and Volumes
Replies: 0
Views: 390
Topic
A wooden bookshelf has external dimensions as follows: Height = 110cm, Depth = 25cm, Breadth = 85 cm (see fig.). The thickness of the plank is 5cm everywhere.
5 years ago
Forum
Surface Areas and Volumes
Replies: 0
Views: 386
Topic
A capsule of medicine is in the shape of a sphere of diameter 3.5 mm. How much medicine (in mm^3) is needed to fill this capsule?
5 years ago
Forum
Surface Areas and Volumes
Replies: 0
Views: 316
Page 17 / 113

How Can We Help?

    Home

    About Us

    Contact Us

    Privacy Policy

    Term of Use

    Copyright © 2020 Eanshub

    All Rights Reserved