Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 967 · 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 triangle against a bar? (a) diode (b) voltmeter (c) bulb (d) LED
2. 2.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) dotted circles (c) wavy lines (d) little stars
3. 3.Which drawing is the symbol for a switch? (a) a plain rectangle (b) one tall, one short bar (c) triangle, bar and arrows (d) a line lifted at a gap
4. 4.True or false: a straight line is the symbol for a bulb. (a) False (b) True
5. 5.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) resistor (b) LED (c) cell (d) motor
6. 6.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
7. 7.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) the longer line (c) neither line (d) both lines
8. 8.Which drawing is the symbol for a battery? (a) a circle with A inside (b) a circle with a cross (c) two equal parallel lines (d) many long-short pairs
9. 9.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
10. 10.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) wire (c) cell (d) ammeter
11. 11.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) symbols are heavier (c) to make it colourful (d) quick and clear for all
12. 12.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
13. 13.Which drawing is the symbol for a bulb? (a) many long-short pairs (b) a circle with A inside (c) a circle with a cross (d) two or more cell symbols
14. 14.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) bulb (b) resistor (c) cell (d) voltmeter
15. 15.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) voltmeter (b) wire (c) capacitor (d) junction
16. 16.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) motor (b) resistor (c) voltmeter (d) junction
17. 17.True or false: many long-short pairs is the symbol for a motor. (a) True (b) False
18. 18.Which drawing is the symbol for a resistor? (a) a circle with an X in it (b) a circle with A inside (c) a dot where wires meet (d) a plain rectangle
19. 19.True or false: a line lifted at a gap is the symbol for a cell. (a) False (b) True
20. 20.True or false: many long-short pairs is the symbol for a cell. (a) True (b) False
21. 21.Which drawing is the symbol for a bulb? (a) a plain rectangle (b) a small empty box (c) a circle with an X in it (d) a circle with V inside
22. 22.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
23. 23.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
24. 24.Which drawing is the symbol for a cell? (a) many long-short pairs (b) a line lifted at a gap (c) a long and a short line (d) a small empty box
25. 25.Which drawing is the symbol for a diode? (a) many long-short pairs (b) a long and a short line (c) a straight line (d) triangle against a bar
26. 26.Which drawing is the symbol for an ammeter? (a) a plain rectangle (b) a small empty box (c) a dot where wires meet (d) a circle with A inside
27. 27.True or false: a circle with V inside is the symbol for an ammeter. (a) True (b) False
28. 28.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
29. 29.True or false: a circle with a cross is the symbol for an ammeter. (a) False (b) True
30. 30.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
31. 31.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) capacitor (b) LED (c) motor (d) diode
32. 32.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) cell (b) LED (c) motor (d) battery
33. 33.Which drawing is the symbol for a voltmeter? (a) a circle with A inside (b) a circle with V inside (c) a circle with an X in it (d) two or more cell symbols
34. 34.Which drawing is the symbol for a wire? (a) a straight line (b) a circle with a cross (c) one tall, one short bar (d) a circle with M inside
35. 35.True or false: a long and a short line is the symbol for a motor. (a) True (b) False
36. 36.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
37. 37.True or false: a circle with A inside is the symbol for an ammeter. (a) True (b) False
38. 38.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) motor (b) switch (c) LED (d) bulb
39. 39.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) capacitor (b) resistor (c) cell (d) bulb
40. 40.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) switch (b) resistor (c) diode (d) ammeter

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