Podcast
Questions and Answers
What type of current flows in one direction only?
What type of current flows in one direction only?
- Reversed current
- Alternating current
- Mains current
- Direct current (correct)
The UK mains electrical supply operates at a frequency of 60 Hz.
The UK mains electrical supply operates at a frequency of 60 Hz.
False (B)
What is the voltage of the mains electrical supply in the UK?
What is the voltage of the mains electrical supply in the UK?
230 V
Power stations produce electricity using __________, providing an alternating current.
Power stations produce electricity using __________, providing an alternating current.
Match the following terms with their descriptions:
Match the following terms with their descriptions:
Flashcards
Electric current
Electric current
The movement of electrically charged particles, such as electrons moving through a wire or ions moving through a solution.
Direct current (DC)
Direct current (DC)
An electric current that flows in one direction only.
Alternating current (AC)
Alternating current (AC)
An electric current that regularly changes its direction and size.
Frequency
Frequency
Signup and view all the flashcards
Mains electrical supply
Mains electrical supply
Signup and view all the flashcards
Study Notes
Electrical Current Types
- Electricity flows as either direct current (DC) or alternating current (AC).
- DC flows in one direction only, shown as a straight horizontal line on a voltage-time graph.
- AC changes direction and size regularly, graphed as a curve alternating between positive and negative voltages.
Direct Current Sources
- Car batteries, dry cells, and solar cells produce DC.
Alternating Current Sources
- Power stations generate electricity using magnets, producing AC.
- The UK's mains electrical supply is AC.
Main Electrical Supply Details
- UK mains supply is 230 Volts (V).
- The frequency of the UK mains supply is 50 Hertz (Hz).
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
