MCQ
Why is a switch used in a circuit?
- ATo save energy.
- ✓To complete or break a circuit.
- CTo prevent electric shocks.
- DTo make the bulb glow easily.
✓
Answer
Correct option: B.
To complete or break a circuit.
A switch is used to complete or break a circuit.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
A substance present in plants which itself does not undergo any change but helps in changing water and carbon dioxide into food:
Directions: Read the passage $(s)$ given be low and answer the questions that follow. Passage Look at the following flow chart and answer the given questions:
Which of the following is correct option for $'B'?$
→Which of the following is correct option for $'B'?$
The substance which contains only one kind of molecules is called:
Which of the following terms is used for rotting and conversion of some materials into manure by using red worms?
Identity the gas Odourless, Colourless, Heavier than air, supports combustion.
DIRECTIONS: Read the passage $(s)$ given below and answer the questions that follow. Passage - You are asked to add two spoons of solid salt to some liquid water taken in a beaker. On stirring it you find that whole of the salt has disappeared and only liquid can be seen in beaker. Which process can you use to get liquid water from the water vapours if you collect them in another container?
→Which is a natural magnet?
Electric circuit is:
Which of the following is used to make carpets and gunny bags?
Directions: Read the passage $(s)$ given below and answer the questions that follow. Passage $- 1$ Look at the following food chain and then answer the questions that follow. Grain $\rightarrow $ grasshopper $\rightarrow $ frogs $\rightarrow $ snakes $\rightarrow $ owls bacteria Which organism in this food chain is responsible for recycling nutrients?
→