EASY
7th CBSE
IMPORTANT
Earn 100

A straight wire carrying a current acts like a magnet. Then why is a coil of wire used in an electromagnet instead of just a straight wire?

Important Questions on Electric Current and Its Effects

EASY
7th CBSE
IMPORTANT
Living Science 7>Chapter 17 - Electric Current and Its Effects>EXERCISES>Q A
Which of these is not a circuit element?
EASY
7th CBSE
IMPORTANT
Living Science 7>Chapter 17 - Electric Current and Its Effects>EXERCISES>Q A
Which of these appliances does not use an electromagnet?
 
EASY
7th CBSE
IMPORTANT
Living Science 7>Chapter 17 - Electric Current and Its Effects>EXERCISES>Q A
Which of these is absolutely necessary in an electric circuit?
EASY
7th CBSE
IMPORTANT
Living Science 7>Chapter 17 - Electric Current and Its Effects>EXERCISES>Q B
Metals are conductors of electricity.
MEDIUM
7th CBSE
IMPORTANT
Living Science 7>Chapter 17 - Electric Current and Its Effects>EXERCISES>Q B
Every conductor offers some resistance to the flow of electric current. 
EASY
7th CBSE
IMPORTANT
Living Science 7>Chapter 17 - Electric Current and Its Effects>EXERCISES>Q B
We use symbols to draw a circuit _____.
EASY
7th CBSE
IMPORTANT
Living Science 7>Chapter 17 - Electric Current and Its Effects>EXERCISES>Q B
 A point A in a circuit is at a lower potential than point B. In Which direction will the current flow in the circuit? 
MEDIUM
7th CBSE
IMPORTANT
Living Science 7>Chapter 17 - Electric Current and Its Effects>EXERCISES>Q B
 In a circuit, a conductor offering low resistance will heat up more than a conductor offering high resistance.