A torch contains a simple electric circuit. In a torch, two (or more) cells are connected to a torch bulb through a sliding switch. When the torch is needed to provide light, we close the sliding switch by pushing it forward so that the circuit is completed and the bulb lights up.
How does a electric torch work?
When the switch of a flashlight is pushed into the ON position, it makes contact between two contact strips, which begin a flow of electricity, powered from the battery. … When activated by electricity, the tungsten filament or LED in the lamp begins to glow, producing light that is visible.
How does electric torch work with diagram?
Bulb: The bulb emits light when electric current flows through its filament. Electric cell: The cell is an electricity-producing device. The required current for the filament of the bulb is supplied by it. Switch: The switch is used to complete and break the circuit inside the torch.
What is electric torch?
1. A small portable lamp usually powered by batteries. 2. A brief brilliant flood of light from a photographic lamp.
How does an electric torch work short answer?
A torch consists of a simple electric circuit in which two or more cells are connected to a torch bulb through a sliding switch. When the torch is needed to provide light, the sliding switch is closed by pushing it forward so that the circuit is completed and the bulb of the torch lights up.
What is the purpose of using an electric switch?
Electricity and Circuits | Exercise
A switch is used to complete or break an electric circuit to use an electric appliance according our convenience. Some electrical gadgets that have switches built into them are electric lamps, cooler, washing machines, table fan, TV, radio, etc.
What are the main parts of an electric torch?
An electric torch is a device used to light up an area when it is dark and can be used as a lamp. It has two or more than two cells, plastic casing, slide switch and a reflector.
What is the torch for Class 6?
A torch is a portable electric lamp which uses two (or more) cells to light a small bulb. A torch is used to provide light when going out during a dark night or when electricity supply fails at home. The torch has a bulb that lights up when it is switched on. A torch contains a simple electric circuit.
What are the necessary items for an electric torch?
The list of materials required for making a LED Torch light are:
- High Intensity LED light 
- Small on / off switch 
- 9 volt battery 
- Scissor 
- Electrical Tape 
- Wires [few]
- Resistor 270 ohm 
How do you make a simple electric torch?
How to Build the Flashlight:
- Cut the cardboard tube lengthwise and flatten. …
- Cut two wires and strip both ends. …
- Cut a small cardboard piece to fit over the top of the tube. …
- Wrap one of the wires around the body of the light bulb.
How do you make a homemade torch light?
Cut a hole in the bottom of a paper cup just large enough for the bulb. Place the bulb into the hole and secure the cup to the cardboard base with more tape. Insert a paperclip or soda tab in between the two brass tab ends. When the paperclip is touching both, it conducts electricity and turns your flashlight on.
What is the function of a torch?
A torch is a stick with combustible material at one end, which is ignited and used as a light source. Torches have been used throughout history, and are still used in processions, symbolic and religious events, and in juggling entertainment.
What are conductors for Class 6?
CBSE NCERT Notes Class 6 Physics Electricity and Circuits. Materials which allow electric current to pass through them are called conductors of electricity. Examples are iron nail, key, safety pin, water, human bodyetc.
Why is it called a flashlight?
Etymology. Early flashlights ran on zinc–carbon batteries, which could not provide a steady electric current and required periodic “rest” to continue functioning. … Consequently, they could be used only in brief flashes, hence the common North American name “flashlight”.