Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 75 · 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.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
2. 2.True or false: a circle with an X in it is the symbol for a battery. (a) True (b) False
3. 3.True or false: a long and a short line is the symbol for a junction. (a) False (b) True
4. 4.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
5. 5.True or false: two or more cell symbols is the symbol for a cell. (a) True (b) False
6. 6.Which drawing is the symbol for a wire? (a) a circle with M inside (b) a straight line (c) triangle against a bar (d) a circle with an X in it
7. 7.Which drawing is the symbol for a motor? (a) a dot where wires meet (b) a circle with M inside (c) a circle with a cross (d) a line lifted at a gap
8. 8.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) dotted circles (c) wavy lines (d) little stars
9. 9.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) neither line (c) the longer line (d) both lines
10. 10.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) diode (b) resistor (c) battery (d) wire
11. 11.True or false: a long and a short line is the symbol for a diode. (a) True (b) False
12. 12.Which drawing is the symbol for an LED? (a) a circle with a cross (b) many long-short pairs (c) triangle against a bar (d) triangle, bar and arrows
13. 13.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) symbols are heavier (c) quick and clear for all (d) to make it colourful
14. 14.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) switch (b) junction (c) capacitor (d) battery
15. 15.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) diode (b) cell (c) resistor (d) battery
16. 16.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) resistor (b) switch (c) LED (d) wire
17. 17.Which drawing is the symbol for a capacitor? (a) a straight line (b) a line lifted at a gap (c) a circle with an X in it (d) two equal parallel lines
18. 18.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
19. 19.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) diode (b) battery (c) cell (d) bulb
20. 20.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) ammeter (b) cell (c) diode (d) LED
21. 21.Which drawing is the symbol for a switch? (a) triangle, bar and arrows (b) a circle with a cross (c) a line lifted at a gap (d) many long-short pairs
22. 22.Which drawing is the symbol for a resistor? (a) a plain rectangle (b) a dot where wires meet (c) a straight line (d) two or more cell symbols
23. 23.Which drawing is the symbol for a cell? (a) two equal parallel lines (b) two or more cell symbols (c) a long and a short line (d) a circle with V inside
24. 24.Which drawing is the symbol for a bulb? (a) a line lifted at a gap (b) a plain rectangle (c) a straight line (d) a circle with a cross
25. 25.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) a circle with M inside (c) a dot where wires meet (d) a straight line
26. 26.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) battery (b) voltmeter (c) ammeter (d) wire
27. 27.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
28. 28.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) wire (b) cell (c) diode (d) voltmeter
29. 29.Which drawing is the symbol for a bulb? (a) many long-short pairs (b) a circle with an X in it (c) a dot where wires meet (d) a circle with V inside
30. 30.True or false: a circle with M inside is the symbol for a resistor. (a) True (b) False
31. 31.True or false: a straight line is the symbol for a motor. (a) True (b) False
32. 32.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
33. 33.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
34. 34.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) voltmeter (b) motor (c) wire (d) bulb
35. 35.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) battery (b) voltmeter (c) capacitor (d) resistor
36. 36.Which drawing is the symbol for a junction? (a) triangle against a bar (b) a dot where wires meet (c) a circle with an X in it (d) a circle with M inside
37. 37.True or false: triangle against a bar is the symbol for an LED. (a) False (b) True
38. 38.True or false: a dot where wires meet is the symbol for a junction. (a) True (b) False
39. 39.Which drawing is the symbol for a cell? (a) a line lifted at a gap (b) two or more cell symbols (c) many long-short pairs (d) one tall, one short bar
40. 40.True or false: a straight line is the symbol for a switch. (a) True (b) False

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