MEDIUM
7th CBSE
IMPORTANT
Earn 100

Explain the importance of using fuse in a household electric circuit. 

Important Questions on Electric Current and Its Effects

MEDIUM
7th CBSE
IMPORTANT
AWARENESS SCIENCE for Seventh Class>Chapter 14 - Electric Current and Its Effects>Short Answer Type Questions>Q 42
When does the overloading of a household electric circuit occur?
MEDIUM
7th CBSE
IMPORTANT
AWARENESS SCIENCE for Seventh Class>Chapter 14 - Electric Current and Its Effects>Short Answer Type Questions>Q 43
Explain why, any metal wire or metal strip cannot be used in place of fuse wire.
MEDIUM
7th CBSE
IMPORTANT
AWARENESS SCIENCE for Seventh Class>Chapter 14 - Electric Current and Its Effects>Short Answer Type Questions>Q 44
What type of electric fuse is used in individual electrical appliances? Explain with the help of a labelled diagram. 
MEDIUM
7th CBSE
IMPORTANT
AWARENESS SCIENCE for Seventh Class>Chapter 14 - Electric Current and Its Effects>Short Answer Type Questions>Q 45
An electrician working in your home wants to replace a blown up fuse wire by a piece of copper wire. Would you agree? Give reason for your response. 
MEDIUM
7th CBSE
IMPORTANT
AWARENESS SCIENCE for Seventh Class>Chapter 14 - Electric Current and Its Effects>Short Answer Type Questions>Q 46
What might happen if a fuse is not inserted in household electric wiring? 
MEDIUM
7th CBSE
IMPORTANT
AWARENESS SCIENCE for Seventh Class>Chapter 14 - Electric Current and Its Effects>Short Answer Type Questions>Q 47
Explain why, filament-type electric bulbs are not power efficient. Name any two types of electric lighting devices which are much more energy efficient than filament-type bulbs.
MEDIUM
7th CBSE
IMPORTANT
AWARENESS SCIENCE for Seventh Class>Chapter 14 - Electric Current and Its Effects>Short Answer Type Questions>Q 48
Can you use an electromagnet for separating plastic bags from a garbage heap? Give reason for your answer. 
MEDIUM
7th CBSE
IMPORTANT
AWARENESS SCIENCE for Seventh Class>Chapter 14 - Electric Current and Its Effects>Short Answer Type Questions>Q 49
State two important uses of electromagnets.