EASY
7th Chhattisgarh Board
IMPORTANT
Earn 100

 In the symbol of electric cell what does the longer line, and a shorter but thicker parallel line represents? 

Important Questions on Electric Current and its Effect

MEDIUM
7th Chhattisgarh Board
IMPORTANT
Science & Technology Class - VII>Chapter 21 - Electric Current and its Effect>Answer these>Q 2
What do you understand by battery? 
MEDIUM
7th Chhattisgarh Board
IMPORTANT
Science & Technology Class - VII>Chapter 21 - Electric Current and its Effect>Answer these>Q 3
Give two examples each of conductors and insulators. 
MEDIUM
7th Chhattisgarh Board
IMPORTANT
Science & Technology Class - VII>Chapter 21 - Electric Current and its Effect>Answer these>Q 1
From which alloy are the heating elements of electric heater and electric press made of?
MEDIUM
7th Chhattisgarh Board
IMPORTANT
Science & Technology Class - VII>Chapter 21 - Electric Current and its Effect>Answer these>Q 2
What is the safety device used in an electric circuit called? 
MEDIUM
7th Chhattisgarh Board
IMPORTANT
Science & Technology Class - VII>Chapter 21 - Electric Current and its Effect>Answer these>Q 3
Why is the fuse wire made of a material which has Low melting point?
MEDIUM
7th Chhattisgarh Board
IMPORTANT
Science & Technology Class - VII>Chapter 21 - Electric Current and its Effect>Answer these>Q 4
Write two uses of the electromagnet. 
EASY
7th Chhattisgarh Board
IMPORTANT
Science & Technology Class - VII>Chapter 21 - Electric Current and its Effect>Questions for practice>Q 1
 The materials which allow electric current to pass through them are called
MEDIUM
7th Chhattisgarh Board
IMPORTANT
Science & Technology Class - VII>Chapter 21 - Electric Current and its Effect>Questions for practice>Q 1
Which of the following is not a good conductor of electricity?