Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 609 · 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.Which drawing is the symbol for a cell? (a) a plain rectangle (b) one tall, one short bar (c) a circle with a cross (d) two equal parallel lines
2. 2.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) resistor (b) switch (c) voltmeter (d) wire
3. 3.True or false: triangle against a bar is the symbol for a motor. (a) True (b) False
4. 4.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) straight lines (c) little stars (d) dotted circles
5. 5.Which drawing is the symbol for a diode? (a) a straight line (b) two equal parallel lines (c) a small empty box (d) triangle against a bar
6. 6.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) ammeter (b) resistor (c) switch (d) battery
7. 7.True or false: a circle with A inside is the symbol for an ammeter. (a) True (b) False
8. 8.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) to hide the circuit (c) to make it colourful (d) symbols are heavier
9. 9.Which drawing is the symbol for a motor? (a) a circle with M inside (b) a straight line (c) a line lifted at a gap (d) one tall, one short bar
10. 10.True or false: two equal parallel lines is the symbol for a cell. (a) True (b) False
11. 11.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) triangle, bar and arrows (c) many long-short pairs (d) a line lifted at a gap
12. 12.Which drawing is the symbol for a bulb? (a) a long and a short line (b) a circle with a cross (c) a circle with A inside (d) a circle with V inside
13. 13.Which drawing is the symbol for a junction? (a) one tall, one short bar (b) a line lifted at a gap (c) a dot where wires meet (d) a long and a short line
14. 14.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) voltmeter (b) capacitor (c) diode (d) battery
15. 15.Which drawing is the symbol for an LED? (a) a circle with V inside (b) a plain rectangle (c) triangle, bar and arrows (d) a circle with a cross
16. 16.Which drawing is the symbol for a resistor? (a) a straight line (b) a long and a short line (c) a plain rectangle (d) one tall, one short bar
17. 17.True or false: a long and a short line is the symbol for a wire. (a) False (b) True
18. 18.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) capacitor (b) diode (c) cell (d) switch
19. 19.True or false: triangle, bar and arrows is the symbol for an ammeter. (a) True (b) False
20. 20.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the shorter line (c) the longer line (d) neither line
21. 21.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) cell (b) bulb (c) capacitor (d) junction
22. 22.Which drawing is the symbol for a wire? (a) triangle against a bar (b) a small empty box (c) two equal parallel lines (d) a straight line
23. 23.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) battery (b) wire (c) resistor (d) ammeter
24. 24.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
25. 25.True or false: a circle with a cross is the symbol for a battery. (a) True (b) False
26. 26.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
27. 27.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) motor (b) capacitor (c) battery (d) bulb
28. 28.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) motor (b) bulb (c) resistor (d) ammeter
29. 29.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) voltmeter (b) junction (c) motor (d) wire
30. 30.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
31. 31.Which drawing is the symbol for a battery? (a) a long and a short line (b) many long-short pairs (c) a circle with a cross (d) two equal parallel lines
32. 32.Which drawing is the symbol for a switch? (a) a plain rectangle (b) a line lifted at a gap (c) many long-short pairs (d) two or more cell symbols
33. 33.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) a line lifted at a gap (c) a circle with an X in it (d) a small empty box
34. 34.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) a straight line (c) a circle with a cross (d) many long-short pairs
35. 35.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
36. 36.True or false: triangle, bar and arrows is the symbol for a voltmeter. (a) True (b) False
37. 37.True or false: a straight line is the symbol for a wire. (a) False (b) True
38. 38.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) bulb (b) diode (c) LED (d) battery
39. 39.Which drawing is the symbol for a resistor? (a) a small empty box (b) two or more cell symbols (c) a circle with M inside (d) triangle, bar and arrows
40. 40.True or false: one tall, one short bar is the symbol for a junction. (a) True (b) False

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