Question 1 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c65ff59b460d7261e5e7.PNG' />
In the above figure, state whether the direction of current is correct or not .
Question 2 :
What makes it possible to light our homes, roads, offices, markets and factories even after sunset ?
Question 3 :
Which of the following device is used to perform the activity to listen to music?
Question 4 :
Fill in the blank: A ________ has a bulb that lights up when it is switched on.
Question 5 :
Fill in the blank: _____ is the negative terminal of electric cell.
Question 6 :
State whether True or False: A fused bulb does not light up as no current passes through its filament.
Question 7 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c65ef59b460d7261e5e6.PNG' />
The above figure shows a bulb connected to a cell in two different ways. What will be the direction of the current through the bulb in the case A ?
Question 8 :
State whether True or False: Air is an insulator of electricity.
Question 9 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c66cf59b460d7261e5f4.PNG' />
The above figure shows a bulb with its different parts marked as 1, 2, 3, 4 and 5. Which of them label the terminals of the bulb?
Question 10 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c660f59b460d7261e5e8.PNG' />
In the above figure, state whether the direction of current is correct or not.
Question 12 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c66cf59b460d7261e5f5.PNG' />
In which of the following circuits A, B and C given in the above figure, the cell will be used up very rapidly?
Question 17 :
Fill in the blanks: In an electric circuit, the direction of current is taken to be from the ________ terminal to the ________ terminal of the electric cell.
Question 18 :
Fill in the blank: Switches, electrical plugs and sockets are made of _________.
Question 19 :
Paheli is running short of connecting wires. To complete an electric circuit, she may use a ____ .
Question 21 :
State whether True or False: Human body is an insulator of electricity.
Question 24 :
Boojho has a cell and a single piece of connecting wire. Without cutting the wire in two, will he be able to make the bulb glow?
Question 26 :
State true or false : Instead of metal wires, a jute string can be used to make a circuit.
Question 27 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c65df59b460d7261e5e5.PNG' />
The above figure shows a bulb connected to a cell in two different ways. Does the brightness of the glowing bulb depend on the direction of current through it?
Question 28 :
Why should an electrician use rubber gloves while repairing an electric switch at your home?
Question 29 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c669f59b460d7261e5f2.PNG' />
Which of the above arrangement A, B, C and D should not be set up?
Question 30 :
State whether True or False: A fused bulb can light up when current passes through its filament.