We continue with the issue 1 - Basics of electricity. We treat P-1.2 - The electrical circuit and comment the most common electrical symbols.
Workshop:
We finish the extensions cords, try them out and measure tension and intensity of a fan. Note that to measure voltage it is not necessary having the fan connected, while measuring intensity it is and the intensity increases at higher fan speeds.
AC/DC -> Highway to Hell
Vocabulary:
electricity
electric circuit
electric tension
voltage
electric current
power
alternate current
direct current
lamp
battery
electrical conductor
measure
Pronunciation
Phrases:
Electrical tension is measured in volts (V).
Electrical current is measured in ampere (A).
Electrical power is measured in watt (W).
Alternate current (AC) - Direct current (DC)
A lamp connected with conductors to a battery is a closed electric circuit, where the electric current can flow.
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