Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 473 · 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 cell symbol, which line is the + terminal? (a) the longer line (b) the shorter line (c) neither line (d) both lines
2. 2.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) motor (b) bulb (c) battery (d) cell
3. 3.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) bulb (b) junction (c) motor (d) battery
4. 4.True or false: a circle with M inside is the symbol for a motor. (a) True (b) False
5. 5.True or false: a circle with a cross is the symbol for a capacitor. (a) True (b) False
6. 6.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) two equal parallel lines (c) a circle with M inside (d) one tall, one short bar
7. 7.Which drawing is the symbol for a diode? (a) one tall, one short bar (b) a small empty box (c) triangle against a bar (d) a circle with A inside
8. 8.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) ammeter (b) LED (c) switch (d) wire
9. 9.Which drawing is the symbol for a bulb? (a) triangle, bar and arrows (b) a circle with M inside (c) a circle with a cross (d) two equal parallel lines
10. 10.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) diode (b) switch (c) ammeter (d) resistor
11. 11.Which drawing is the symbol for a resistor? (a) triangle, bar and arrows (b) a small empty box (c) triangle against a bar (d) a line lifted at a gap
12. 12.True or false: triangle against a bar is the symbol for an LED. (a) False (b) True
13. 13.True or false: a straight line is the symbol for a wire. (a) True (b) False
14. 14.✏️ 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
15. 15.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
16. 16.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) little stars (c) dotted circles (d) straight lines
17. 17.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
18. 18.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) motor (c) ammeter (d) wire
19. 19.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
20. 20.True or false: triangle against a bar is the symbol for a diode. (a) True (b) False
21. 21.True or false: a long and a short line is the symbol for a bulb. (a) True (b) False
22. 22.✏️ In a circuit diagram, which part is drawn as a straight line? (a) junction (b) battery (c) motor (d) wire
23. 23.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) motor (b) cell (c) wire (d) capacitor
24. 24.Which drawing is the symbol for a voltmeter? (a) a circle with M inside (b) one tall, one short bar (c) a circle with V inside (d) a straight line
25. 25.Which drawing is the symbol for a capacitor? (a) a circle with a cross (b) triangle against a bar (c) two equal parallel lines (d) a circle with M inside
26. 26.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) ammeter (b) voltmeter (c) switch (d) battery
27. 27.True or false: a circle with A inside is the symbol for a battery. (a) False (b) True
28. 28.Which drawing is the symbol for a junction? (a) a circle with an X in it (b) one tall, one short bar (c) a circle with a cross (d) a dot where wires meet
29. 29.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
30. 30.Which drawing is the symbol for a cell? (a) a line lifted at a gap (b) a dot where wires meet (c) two or more cell symbols (d) one tall, one short bar
31. 31.Which drawing is the symbol for a wire? (a) a circle with M inside (b) one tall, one short bar (c) a straight line (d) triangle, bar and arrows
32. 32.Which drawing is the symbol for a bulb? (a) two equal parallel lines (b) triangle, bar and arrows (c) a circle with an X in it (d) a line lifted at a gap
33. 33.Which drawing is the symbol for a battery? (a) a circle with V inside (b) a line lifted at a gap (c) two equal parallel lines (d) two or more cell symbols
34. 34.Which drawing is the symbol for an ammeter? (a) two or more cell symbols (b) many long-short pairs (c) one tall, one short bar (d) a circle with A inside
35. 35.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
36. 36.True or false: two or more cell symbols is the symbol for a voltmeter. (a) True (b) False
37. 37.Which drawing is the symbol for a cell? (a) a long and a short line (b) a line lifted at a gap (c) a circle with a cross (d) two equal parallel lines
38. 38.Which drawing is the symbol for an LED? (a) a circle with M inside (b) triangle, bar and arrows (c) a circle with an X in it (d) one tall, one short bar
39. 39.True or false: a plain rectangle is the symbol for an ammeter. (a) True (b) False
40. 40.True or false: two or more cell symbols is the symbol for a wire. (a) True (b) False

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