Anita Sood, Anupama Bhandari, Madhabi Bose and, Shelly Wadhwa Solutions for Exercise 3: ASSESSMENT ZONE

Author:Anita Sood, Anupama Bhandari, Madhabi Bose & Shelly Wadhwa

Anita Sood Science Solutions for Exercise - Anita Sood, Anupama Bhandari, Madhabi Bose and, Shelly Wadhwa Solutions for Exercise 3: ASSESSMENT ZONE

Attempt the free practice questions from Exercise 3: ASSESSMENT ZONE with hints and solutions to strengthen your understanding. Expanded Universal Science 7 solutions are prepared by Experienced Embibe Experts.

Questions from Anita Sood, Anupama Bhandari, Madhabi Bose and, Shelly Wadhwa Solutions for Exercise 3: ASSESSMENT ZONE with Hints & Solutions

EASY
7th CBSE
IMPORTANT

Heating effect of the current was first discovered by _____.

(Choose from the following: James Prescott Joule/ Nicolas Carnot/ Ralph H. Fowler)

EASY
7th CBSE
IMPORTANT

_____ is a coil of wire closely wound in the form of a spiral. 

EASY
7th CBSE
IMPORTANT

Electric bell is based on the principle of _____ of electric current.

EASY
7th CBSE
IMPORTANT

An electromagnet does not attract a piece of iron.

EASY
7th CBSE
IMPORTANT

An electric bell has an electromagnet.

EASY
7th CBSE
IMPORTANT

Magnetic effect increases with decrease in number of turns of conducting wire.

EASY
7th CBSE
IMPORTANT

An electromagnet also has two poles - North and South.

EASY
7th CBSE
IMPORTANT

The element of an electric iron is made of copper.