Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 525 · 40 questions

Remember (Shape tells the part): Cell: long and short line (long = +). Battery: two or more cells. Wire: straight line. Junction: a dot. Bulb: circle with a cross. Switch: line lifted at a gap. Resistor: rectangle. Capacitor: two equal parallel lines. Diode: triangle against a bar; LED: the same with two arrows out. Circle with M = motor, A = ammeter, V = voltmeter.

1. 1.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) resistor (b) wire (c) junction (d) bulb
2. 2.True or false: a line lifted at a gap is the symbol for a capacitor. (a) True (b) False
3. 3.Which drawing is the symbol for an LED? (a) a plain rectangle (b) many long-short pairs (c) triangle, bar and arrows (d) a circle with M inside
4. 4.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) quick and clear for all (c) to hide the circuit (d) to make it colourful
5. 5.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) ammeter (b) bulb (c) switch (d) voltmeter
6. 6.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
7. 7.Which drawing is the symbol for a diode? (a) a long and a short line (b) a circle with V inside (c) triangle against a bar (d) a circle with a cross
8. 8.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) capacitor (b) bulb (c) ammeter (d) LED
9. 9.Which drawing is the symbol for a battery? (a) a circle with A inside (b) a line lifted at a gap (c) two or more cell symbols (d) a straight line
10. 10.True or false: a circle with A inside is the symbol for an ammeter. (a) True (b) False
11. 11.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) little stars (c) dotted circles (d) straight lines
12. 12.Which drawing is the symbol for a cell? (a) many long-short pairs (b) one tall, one short bar (c) a circle with A inside (d) a circle with a cross
13. 13.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
14. 14.Which drawing is the symbol for a switch? (a) a plain rectangle (b) a circle with an X in it (c) two or more cell symbols (d) a line lifted at a gap
15. 15.True or false: a straight line is the symbol for a wire. (a) False (b) True
16. 16.True or false: a plain rectangle is the symbol for a cell. (a) True (b) False
17. 17.Which drawing is the symbol for a junction? (a) a dot where wires meet (b) a long and a short line (c) a circle with a cross (d) a circle with M inside
18. 18.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) LED (b) battery (c) cell (d) ammeter
19. 19.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) LED (b) voltmeter (c) switch (d) resistor
20. 20.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) LED (b) cell (c) battery (d) switch
21. 21.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) bulb (b) motor (c) junction (d) battery
22. 22.Which drawing is the symbol for an ammeter? (a) two equal parallel lines (b) a long and a short line (c) a circle with A inside (d) a small empty box
23. 23.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) cell (b) resistor (c) diode (d) bulb
24. 24.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) capacitor (b) bulb (c) junction (d) ammeter
25. 25.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) both lines (c) neither line (d) the longer line
26. 26.Which drawing is the symbol for a cell? (a) a circle with a cross (b) many long-short pairs (c) a long and a short line (d) two or more cell symbols
27. 27.Which drawing is the symbol for a wire? (a) many long-short pairs (b) a circle with an X in it (c) a straight line (d) two or more cell symbols
28. 28.Which drawing is the symbol for a bulb? (a) a plain rectangle (b) one tall, one short bar (c) a dot where wires meet (d) a circle with an X in it
29. 29.Which drawing is the symbol for a capacitor? (a) many long-short pairs (b) triangle, bar and arrows (c) two equal parallel lines (d) a long and a short line
30. 30.True or false: a small empty box is the symbol for an ammeter. (a) False (b) True
31. 31.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) junction (b) battery (c) switch (d) motor
32. 32.Which drawing is the symbol for a resistor? (a) a straight line (b) triangle, bar and arrows (c) a circle with A inside (d) a small empty box
33. 33.Which drawing is the symbol for a resistor? (a) a circle with a cross (b) a long and a short line (c) a plain rectangle (d) a dot where wires meet
34. 34.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) ammeter (b) capacitor (c) motor (d) LED
35. 35.True or false: triangle, bar and arrows is the symbol for a wire. (a) False (b) True
36. 36.True or false: a circle with a cross is the symbol for a capacitor. (a) False (b) True
37. 37.True or false: two or more cell symbols is the symbol for a switch. (a) False (b) True
38. 38.True or false: a circle with M inside is the symbol for an ammeter. (a) False (b) True
39. 39.True or false: a circle with a cross is the symbol for a wire. (a) True (b) False
40. 40.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) motor (b) cell (c) resistor (d) bulb

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