Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 941 · 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: one tall, one short bar is the symbol for a battery. (a) False (b) True
2. 2.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) motor (b) resistor (c) diode (d) switch
3. 3.Which drawing is the symbol for a resistor? (a) triangle, bar and arrows (b) a straight line (c) a plain rectangle (d) two or more cell symbols
4. 4.Which drawing is the symbol for an ammeter? (a) a circle with a cross (b) a circle with A inside (c) a line lifted at a gap (d) a circle with an X in it
5. 5.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) wavy lines (c) dotted circles (d) little stars
6. 6.Which drawing is the symbol for a voltmeter? (a) two equal parallel lines (b) a circle with V inside (c) a circle with A inside (d) a circle with M inside
7. 7.Which drawing is the symbol for a battery? (a) a circle with a cross (b) two equal parallel lines (c) many long-short pairs (d) a circle with an X in it
8. 8.✏️ In a circuit diagram, which part is drawn as a straight line? (a) wire (b) capacitor (c) cell (d) switch
9. 9.True or false: a straight line is the symbol for a motor. (a) True (b) False
10. 10.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) diode (b) battery (c) junction (d) wire
11. 11.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) switch (b) ammeter (c) LED (d) bulb
12. 12.True or false: two or more cell symbols is the symbol for a resistor. (a) False (b) True
13. 13.✏️ 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
14. 14.True or false: triangle against a bar is the symbol for a switch. (a) False (b) True
15. 15.Which drawing is the symbol for a battery? (a) a small empty box (b) a long and a short line (c) triangle, bar and arrows (d) two or more cell symbols
16. 16.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) cell (b) switch (c) voltmeter (d) resistor
17. 17.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) diode (b) capacitor (c) wire (d) battery
18. 18.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
19. 19.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) both lines (c) the longer line (d) neither line
20. 20.Which drawing is the symbol for a bulb? (a) a dot where wires meet (b) a circle with M inside (c) many long-short pairs (d) a circle with an X in it
21. 21.Which drawing is the symbol for a diode? (a) two or more cell symbols (b) a circle with a cross (c) a dot where wires meet (d) triangle against a bar
22. 22.True or false: triangle against a bar is the symbol for a bulb. (a) False (b) True
23. 23.True or false: a small empty box is the symbol for a motor. (a) True (b) False
24. 24.True or false: triangle, bar and arrows is the symbol for a battery. (a) False (b) True
25. 25.True or false: a dot where wires meet is the symbol for a junction. (a) True (b) False
26. 26.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) motor (b) voltmeter (c) bulb (d) cell
27. 27.True or false: triangle against a bar is the symbol for an ammeter. (a) False (b) True
28. 28.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) ammeter (b) bulb (c) capacitor (d) cell
29. 29.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
30. 30.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) LED (b) resistor (c) battery (d) switch
31. 31.Which drawing is the symbol for a bulb? (a) triangle against a bar (b) a circle with a cross (c) a dot where wires meet (d) two equal parallel lines
32. 32.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
33. 33.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
34. 34.True or false: triangle, bar and arrows is the symbol for a wire. (a) False (b) True
35. 35.Which drawing is the symbol for an LED? (a) a long and a short line (b) triangle, bar and arrows (c) a dot where wires meet (d) a line lifted at a gap
36. 36.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) switch (b) voltmeter (c) wire (d) cell
37. 37.Which drawing is the symbol for a junction? (a) a plain rectangle (b) a circle with A inside (c) triangle, bar and arrows (d) a dot where wires meet
38. 38.True or false: a small empty box is the symbol for a cell. (a) True (b) False
39. 39.True or false: a circle with M inside is the symbol for a battery. (a) False (b) True
40. 40.Which drawing is the symbol for a cell? (a) a long and a short line (b) a circle with an X in it (c) triangle against a bar (d) a small empty box

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