B K Gowel and Sangeeta Solutions for Chapter: Electric Current and Its Uses, Exercise 3: Test Your Learning Outcome

Author:B K Gowel & Sangeeta

B K Gowel Science Solutions for Exercise - B K Gowel and Sangeeta Solutions for Chapter: Electric Current and Its Uses, Exercise 3: Test Your Learning Outcome

Attempt the free practice questions on Chapter 13: Electric Current and Its Uses, Exercise 3: Test Your Learning Outcome with hints and solutions to strengthen your understanding. S. Chand's SCIENCE For Class VII solutions are prepared by Experienced Embibe Experts.

Questions from B K Gowel and Sangeeta Solutions for Chapter: Electric Current and Its Uses, Exercise 3: Test Your Learning Outcome with Hints & Solutions

MEDIUM
7th CBSE
IMPORTANT
S. Chand's SCIENCE For Class VII>Chapter 13 - Electric Current and Its Uses>Test Your Learning Outcome>Q 1

Is the ‘light effect’ different from the ‘heat effect’ of electric current? Say yes or no?

EASY
7th CBSE
IMPORTANT
S. Chand's SCIENCE For Class VII>Chapter 13 - Electric Current and Its Uses>Test Your Learning Outcome>Q 2

Name the scientist who invented the electric bulb used for lighting purpose.

EASY
7th CBSE
IMPORTANT
S. Chand's SCIENCE For Class VII>Chapter 13 - Electric Current and Its Uses>Test Your Learning Outcome>Q 3

What do you understand by a ‘filament’ being used in bulb.

EASY
7th CBSE
IMPORTANT
S. Chand's SCIENCE For Class VII>Chapter 13 - Electric Current and Its Uses>Test Your Learning Outcome>Q 4

Why do we create vacuum inside an electric bulb?

EASY
7th CBSE
IMPORTANT
S. Chand's SCIENCE For Class VII>Chapter 13 - Electric Current and Its Uses>Test Your Learning Outcome>Q 5

In some cases a gas is filled in an electric bulb. Which kind of gas is filled in a bulb and why

MEDIUM
7th CBSE
IMPORTANT
S. Chand's SCIENCE For Class VII>Chapter 13 - Electric Current and Its Uses>Test Your Learning Outcome>Q 6

What are fluorescent tubes? What is their advantage over an ordinary bulb.

EASY
7th CBSE
IMPORTANT
S. Chand's SCIENCE For Class VII>Chapter 13 - Electric Current and Its Uses>Test Your Learning Outcome>Q 7

What do you understand by CFL’s?