Electricity for a comfortable life

Name:

Which of the following generates electricity by moving a magnet inside a coil of wire?

Dry cell

Solar cell

Bicycle dynamo

Simple cell

What is the type of power station in Norochchole?

Coal power station

Fuel power station

Hydro power station

Wind power station

The positive and negative terminals of a simple cell respectively

Copper, Zinc

Zinc, Copper

Which of the following is used to measure the current?

Bulb

Electric cells

Switch

Ammeter

Materials that conduct electricity are called,

Conductors

Insulators

Electric cells

Connective wires

Which of the following is a good insulator?

Aluminium

Glass

Silver

Copper

The main function of a rectifying diode is to let the current flow in one direction while emitting a light.

True

False

What is the unit used to measure resistance?

Amphere

Meter

Ohm

Volt

When light falls on a permanent resistor, the resistance of it reduces.

True

False

Which of the following is not a good suggestion to conserve electricity?

Keep a space between the wall and the refrigerator.

Use normal filament bulbs.

Switch off appliances when not in use.

Iron many clothes at once.

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