Name : Date :Class :_______________________________________________________________

Electric Current

The SI unit used for measuring electric current is _________________.

1 ______________ = 1000 milliampere (mA)

Name the instrument used to measure electric current. _______________________________________________________.

Connecting an ammeter correctly1. The ammeter must be connected in _____________ (one after another) to the component you are measuring.

2. The positive terminal of the ammeter must be connected to the _____________ end of the ammeter.

3. Draw how an ammeter should be connected in an electrical circuit.

1

Electric current, I, is defined as ________________________________ _______________________________________________________

Secondary 2 NA ScienceChapter E4: Introducing ElectricityNotes 3

Voltage

The SI unit used for measuring voltage is _________________.

1 ______________ = 1000 millivolt (mV) = _____________ kilovolt (kV)

Name the instrument used to measure voltage. _______________________________________________________.

Connecting a voltmeter correctly1. The voltmeter must be connected in ____________________ to the component you are measuring.

2. The positive terminal of the voltmeter must be connected to the _____________ end of the voltmeter.

3. Draw how a voltmeter should be connected in an electric circuit.

2

The difference in the electrical potential energy between any two points in a circuit is defined as ________________________ or __________________. The ________________ is also known as the energy that is required to push electric charge round a circuit.