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12 Questions

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Electric Current and Circuits

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Questions and Answers

What is the SI unit of electric current?

Volt

Watt

Ampere (correct)

Coulomb

In which direction is the electric current conventionally considered to flow in a circuit?

It varies depending on the circuit

From positive to negative terminal (correct)

From negative to positive terminal

From both terminals simultaneously

What happens if any part of a circuit is broken or disconnected?

The circuit becomes a closed circuit

The circuit becomes an open circuit (correct)

Electric current flows even faster

Electric current stops flowing through it

Which of the following components are essential in an electric circuit?

An electric cell Signup and view all the answers

What type of circuit allows electric current to flow due to no breaks or disconnections?

Closed circuit Signup and view all the answers

What happens when a bulb is connected across a cell circuit?

Electrical energy is converted into light energy Signup and view all the answers

What is the purpose of an electric switch in a circuit?

To regulate the flow of electric current Signup and view all the answers

Why is it recommended to have an adult present when conducting Activity 1?

To prevent electric shock accidents Signup and view all the answers

What happens to the temperature of the bulb when the switch is turned off in Activity 1?

The temperature decreases immediately Signup and view all the answers

Which device uses the heating effect of electric current to produce light?

Incandescent bulb Signup and view all the answers

What does passing electric current through a conductor produce?

Heat energy Signup and view all the answers

What other forms of energy can be obtained from electrical energy according to the text?

Other forms of energy apart from electrical energy Signup and view all the answers