EASY
7th CBSE
IMPORTANT
Earn 100

There is a knob in a hot plate to regulate the temperature according to our use. What happens when we use the knob to change the temperature? Explain. 

Important Questions on Electric Current and its Effects

MEDIUM
7th CBSE
IMPORTANT
WOW! SCIENCE Hands-on Learning in SCIENCE 7>Chapter 3 - Electric Current and its Effects>Assess>Q 1
What are the symbols used in a circuit diagram to represent a bulb, a switch on, a switch off and a battery.   
EASY
7th CBSE
IMPORTANT
WOW! SCIENCE Hands-on Learning in SCIENCE 7>Chapter 3 - Electric Current and its Effects>Assess>Q 2
When an electric current is passed to a conductor, what are the effects observed?
EASY
7th CBSE
IMPORTANT
WOW! SCIENCE Hands-on Learning in SCIENCE 7>Chapter 3 - Electric Current and its Effects>Assess>Q 3
Name the types of circuits.
EASY
7th CBSE
IMPORTANT
WOW! SCIENCE Hands-on Learning in SCIENCE 7>Chapter 3 - Electric Current and its Effects>Assess>Q 4
What is the role of an electric cell in an electric circuit? 
EASY
7th CBSE
IMPORTANT
WOW! SCIENCE Hands-on Learning in SCIENCE 7>Chapter 3 - Electric Current and its Effects>Assess>Q 5
What is the direction of electric current to flow in an electric circuit?
EASY
7th CBSE
IMPORTANT
WOW! SCIENCE Hands-on Learning in SCIENCE 7>Chapter 3 - Electric Current and its Effects>EVALUATE>Q 1
Choose the incorrect statement about the series circuit. 
EASY
7th CBSE
IMPORTANT
WOW! SCIENCE Hands-on Learning in SCIENCE 7>Chapter 3 - Electric Current and its Effects>EVALUATE>Q 2
The S.I. unit of potential difference is:
EASY
7th CBSE
IMPORTANT
WOW! SCIENCE Hands-on Learning in SCIENCE 7>Chapter 3 - Electric Current and its Effects>EVALUATE>Q 3
Which one of the following is a magnetic effect of electric current?