Torch

Q. Two bulbs are connected to the circuit in the following ways:



In which case the bulb will glow brighter? (3 marks)

Q. When a torch bulb glows, how does the energy conversions occur?

1. Chemical Energy
2. Electrical Energy
3. Heat Energy
4. Light Energy

Q. Which of the following devices operates on electric cell?

1. Ceiling fan
2. Electric iron
3. Tubelights
4. Torch

Q.

What are the necessary items required to build an electric torch?

1. Cell

2. Wire

3. Bulb
4. All of the above.

Q. Which of the following energy conversions take place in a torch?

1. $\text{Electrical}\to \text{Chemical}\to \text{Light}$
2. $\text{Light}\to \text{Chemical}\to \text{Electrical}$
3. $\text{Chemical}\to \text{Electrical}\to \text{Light}$
4. $\text{Electrical}\to \text{Light}\to \text{Chemical}$