MEDIUM
7th CBSE
IMPORTANT
Earn 100

Explain series connection with the help of a neatly labelled circuit diagram.

Important Questions on Electric Current and Its Effects

EASY
7th CBSE
IMPORTANT
Exam Guru Science>Chapter 14 - Electric Current and Its Effects>HOTS AND VALUE BASED QUESTIONS>Q 2

Explain parallel connection with the help of a neatly labelled circuit diagram.

MEDIUM
7th CBSE
IMPORTANT
Exam Guru Science>Chapter 14 - Electric Current and Its Effects>HOTS AND VALUE BASED QUESTIONS>Q 3
Can you use a copper wire to make the filament of an electric bulb. Justify?
EASY
7th CBSE
IMPORTANT
Exam Guru Science>Chapter 14 - Electric Current and Its Effects>HOTS AND VALUE BASED QUESTIONS>Q 4
Why does an open electric circuit not make any appliance work? 
MEDIUM
7th CBSE
IMPORTANT
Exam Guru Science>Chapter 14 - Electric Current and Its Effects>HOTS AND VALUE BASED QUESTIONS>Q 5
Which materials produce heat energy when current is passed through them and why? 
MEDIUM
7th CBSE
IMPORTANT
Exam Guru Science>Chapter 14 - Electric Current and Its Effects>HOTS AND VALUE BASED QUESTIONS>Q 6
Ram and Neeraj are alone at home. Ram is watching TV while Neeraj is playing with his toy. The battery in his toy gets discharged. He decides to change it and connects the plug to the same socket to which the TV is connected. The table fan in their room is also connected to that socket. Suddenly, after a few seconds, Ram sees a heavy spark near the socket. He immediately puts off the main switch and calls his neighbours for help. What do you think is the reason for heavy spark in the socket?
MEDIUM
7th CBSE
IMPORTANT
Exam Guru Science>Chapter 14 - Electric Current and Its Effects>HOTS AND VALUE BASED QUESTIONS>Q 6

Ram and Neeraj are alone at home. Ram is watching TV while Neeraj is playing with his toy. The battery in his toy gets discharged. He decides to change it and connects the plug to the same socket to which the TV is connected. The table fan in their room is also connected to that socket. Suddenly, after a few seconds, Ram sees a heavy spark near the socket. He immediately puts off the main switch and calls his neighbours for help.

(b) What do you learn from Ram’s behavior?