Understanding Electric Torch Components

The video tutorial explains the structure and function of an electric torch. It covers the main components, including the case, battery, bulb, electric circuit, and switch. The tutorial describes how these components work together to produce light, emphasizing the importance of correct battery placement. It also compares the torch's functioning to a simple electric circuit diagram, highlighting the role of conductors and switches in completing the circuit and allowing the bulb to glow.

Which of the following is NOT a component of an electric torch?

• Battery

• Case

• Bulb

• Transformer

What is the correct way to connect the terminals of electric cells in a torch?

• Negative to Positive

• Positive to Negative

• Negative to Negative

• Positive to Positive

What must be ensured before placing an electric cell in a torch?

• The cell is of the correct size

• The cell is placed upside down

• The cell is fully charged

• The positive terminal of the cell matches the positive terminal of the torch

From where does the torch get its electric energy?

• The bulb

• The switch

• The electric cells

• The case

What is necessary for the bulb in the circuit to glow?

• A plastic case

• A broken circuit

• A disconnected switch

• A complete circuit

What controls the circuit of an electric torch?

• The bulb

• The case

• The switch

• The battery

What happens when the switch of the torch is turned on?

• The circuit is completed and the bulb glows

• The battery is disconnected

• The bulb does not glow

• The circuit is broken

What is the best way to understand the working of a torch?

• By guessing

• By using a different torch

• By comparing it with a simple electric circuit diagram

• By reading a book

What do the lines in the circuit diagram represent?

• Wooden conductors

• Rubber conductors

• Plastic conductors

• Metal conductors

What happens when the switch is off in the torch?

• The circuit is complete

• The bulb glows

• The battery charges

• The bulb does not glow