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Black-and-white PNG · 1,900 × 1,100 pixels
Electrical circuits
Open electrical circuit with a dry cell and bulb
An open electrical circuit showing a dry cell, bulb, connecting wires and open switch.
- School level
- Primary Seven
- Learning area
- Integrated Science
- Topic
- Electricity and Magnetism
- Format
- PNG image
- Version
- 1
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Designed for black-and-white printing and classroom learning. The PNG can be inserted into lesson notes and worksheets.
Understanding an open electrical circuit
This illustration belongs to the Primary Seven Integrated Science topic Electricity and Magnetism.
- The drawing shows a dry cell, connecting wires, bulb and an open switch.
- An open switch breaks the conducting path. Current cannot flow around the complete loop, so the bulb stays off.
- Closing the switch would complete the path, allowing current to flow through a working bulb supplied by the dry cell.
Classroom safety: Use low-voltage dry cells for classroom circuit demonstrations. Never connect this diagram directly to household mains electricity.