Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 722 · 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 small empty box? (a) LED (b) diode (c) battery (d) resistor
2. 2.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) a circle with M inside (c) many long-short pairs (d) a circle with a cross
3. 3.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) to make it colourful (c) quick and clear for all (d) symbols are heavier
4. 4.Which drawing is the symbol for a junction? (a) a dot where wires meet (b) many long-short pairs (c) one tall, one short bar (d) a circle with A inside
5. 5.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) battery (b) resistor (c) voltmeter (d) switch
6. 6.Which drawing is the symbol for a diode? (a) triangle against a bar (b) one tall, one short bar (c) triangle, bar and arrows (d) a small empty box
7. 7.True or false: a circle with V inside is the symbol for an ammeter. (a) False (b) True
8. 8.Which drawing is the symbol for a cell? (a) one tall, one short bar (b) a circle with A inside (c) a circle with M inside (d) two or more cell symbols
9. 9.True or false: triangle, bar and arrows is the symbol for a motor. (a) False (b) True
10. 10.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
11. 11.Which drawing is the symbol for a battery? (a) two or more cell symbols (b) a dot where wires meet (c) a plain rectangle (d) a circle with an X in it
12. 12.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) LED (b) battery (c) bulb (d) junction
13. 13.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) the shorter line (c) both lines (d) the longer line
14. 14.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) junction (b) LED (c) diode (d) voltmeter
15. 15.True or false: a circle with A inside is the symbol for a motor. (a) True (b) False
16. 16.✏️ In a circuit diagram, which part is drawn as a straight line? (a) capacitor (b) wire (c) LED (d) voltmeter
17. 17.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) resistor (b) switch (c) cell (d) junction
18. 18.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) wavy lines (c) dotted circles (d) little stars
19. 19.True or false: a straight line is the symbol for an ammeter. (a) False (b) True
20. 20.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) junction (b) ammeter (c) motor (d) switch
21. 21.True or false: a long and a short line is the symbol for a capacitor. (a) False (b) True
22. 22.Which drawing is the symbol for a bulb? (a) triangle against a bar (b) a circle with an X in it (c) two equal parallel lines (d) a plain rectangle
23. 23.True or false: a circle with an X in it is the symbol for a cell. (a) False (b) True
24. 24.Which drawing is the symbol for a battery? (a) many long-short pairs (b) a line lifted at a gap (c) a circle with a cross (d) triangle, bar and arrows
25. 25.True or false: triangle against a bar is the symbol for a diode. (a) True (b) False
26. 26.Which drawing is the symbol for a resistor? (a) many long-short pairs (b) a plain rectangle (c) a circle with V inside (d) a circle with M inside
27. 27.Which drawing is the symbol for a capacitor? (a) a straight line (b) a circle with M inside (c) two equal parallel lines (d) triangle against a bar
28. 28.Which drawing is the symbol for a motor? (a) a circle with an X in it (b) a small empty box (c) a circle with M inside (d) two equal parallel lines
29. 29.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
30. 30.True or false: a long and a short line is the symbol for a resistor. (a) False (b) True
31. 31.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) battery (b) bulb (c) junction (d) resistor
32. 32.Which drawing is the symbol for a bulb? (a) two or more cell symbols (b) a small empty box (c) two equal parallel lines (d) a circle with a cross
33. 33.True or false: a circle with an X in it is the symbol for an LED. (a) True (b) False
34. 34.True or false: two equal parallel lines is the symbol for a wire. (a) False (b) True
35. 35.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) motor (b) cell (c) switch (d) wire
36. 36.Which drawing is the symbol for a switch? (a) a straight line (b) a line lifted at a gap (c) a long and a short line (d) triangle against a bar
37. 37.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) diode (b) junction (c) voltmeter (d) wire
38. 38.True or false: a plain rectangle is the symbol for a bulb. (a) True (b) False
39. 39.True or false: a circle with M inside is the symbol for a motor. (a) True (b) False
40. 40.True or false: a circle with A inside is the symbol for an ammeter. (a) True (b) False

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