Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 902 · 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 switch? (a) two or more cell symbols (b) a line lifted at a gap (c) a dot where wires meet (d) a long and a short line
2. 2.Which drawing is the symbol for a wire? (a) a line lifted at a gap (b) a long and a short line (c) a circle with M inside (d) a straight line
3. 3.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) wire (c) bulb (d) motor
4. 4.Which drawing is the symbol for a cell? (a) two equal parallel lines (b) a circle with V inside (c) a straight line (d) one tall, one short bar
5. 5.True or false: one tall, one short bar is the symbol for a capacitor. (a) True (b) False
6. 6.Which drawing is the symbol for a voltmeter? (a) a circle with an X in it (b) a circle with A inside (c) a circle with V inside (d) many long-short pairs
7. 7.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) bulb (b) diode (c) voltmeter (d) motor
8. 8.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) cell (b) diode (c) junction (d) capacitor
9. 9.Which drawing is the symbol for a resistor? (a) two or more cell symbols (b) triangle against a bar (c) a small empty box (d) a dot where wires meet
10. 10.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) capacitor (b) wire (c) bulb (d) resistor
11. 11.True or false: a line lifted at a gap is the symbol for a battery. (a) False (b) True
12. 12.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) wavy lines (c) little stars (d) straight lines
13. 13.Which drawing is the symbol for an LED? (a) a plain rectangle (b) a line lifted at a gap (c) a long and a short line (d) triangle, bar and arrows
14. 14.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) cell (b) voltmeter (c) resistor (d) diode
15. 15.✏️ 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
16. 16.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) both lines (c) neither line (d) the longer line
17. 17.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) cell (b) battery (c) ammeter (d) bulb
18. 18.Which drawing is the symbol for a cell? (a) a long and a short line (b) triangle against a bar (c) a circle with a cross (d) a line lifted at a gap
19. 19.Which drawing is the symbol for a junction? (a) a circle with an X in it (b) a circle with a cross (c) a dot where wires meet (d) triangle, bar and arrows
20. 20.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) LED (b) cell (c) ammeter (d) diode
21. 21.Which drawing is the symbol for a motor? (a) a straight line (b) a circle with M inside (c) two equal parallel lines (d) a circle with an X in it
22. 22.Which drawing is the symbol for a diode? (a) a circle with M inside (b) two or more cell symbols (c) triangle against a bar (d) a circle with A inside
23. 23.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
24. 24.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
25. 25.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) diode (b) voltmeter (c) battery (d) cell
26. 26.✏️ In a circuit diagram, which part is drawn as a straight line? (a) voltmeter (b) cell (c) ammeter (d) wire
27. 27.True or false: a straight line is the symbol for a motor. (a) True (b) False
28. 28.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) junction (b) battery (c) ammeter (d) voltmeter
29. 29.True or false: a small empty box is the symbol for an ammeter. (a) True (b) False
30. 30.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
31. 31.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
32. 32.True or false: a circle with V inside is the symbol for an ammeter. (a) True (b) False
33. 33.True or false: one tall, one short bar is the symbol for a switch. (a) True (b) False
34. 34.True or false: one tall, one short bar is the symbol for an ammeter. (a) False (b) True
35. 35.True or false: a plain rectangle is the symbol for a capacitor. (a) True (b) False
36. 36.True or false: a dot where wires meet is the symbol for a wire. (a) True (b) False
37. 37.Which drawing is the symbol for an ammeter? (a) a circle with an X in it (b) a circle with a cross (c) a circle with A inside (d) a plain rectangle
38. 38.True or false: a circle with a cross is the symbol for a voltmeter. (a) False (b) True
39. 39.True or false: two or more cell symbols is the symbol for a voltmeter. (a) False (b) True
40. 40.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) switch (b) battery (c) LED (d) bulb

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