Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 776 · 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 motor? (a) triangle, bar and arrows (b) a circle with M inside (c) a long and a short line (d) triangle against a bar
2. 2.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the shorter line (c) the longer line (d) neither line
3. 3.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
4. 4.Which drawing is the symbol for a cell? (a) a dot where wires meet (b) a line lifted at a gap (c) a long and a short line (d) a straight line
5. 5.Which drawing is the symbol for a capacitor? (a) a circle with a cross (b) a line lifted at a gap (c) one tall, one short bar (d) two equal parallel lines
6. 6.Which drawing is the symbol for an LED? (a) a long and a short line (b) triangle, bar and arrows (c) two equal parallel lines (d) a circle with A inside
7. 7.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) voltmeter (b) bulb (c) battery (d) ammeter
8. 8.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) voltmeter (b) capacitor (c) resistor (d) wire
9. 9.Which drawing is the symbol for a bulb? (a) triangle against a bar (b) a circle with an X in it (c) a dot where wires meet (d) a small empty box
10. 10.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) battery (b) wire (c) bulb (d) cell
11. 11.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
12. 12.Which drawing is the symbol for a resistor? (a) a small empty box (b) one tall, one short bar (c) triangle against a bar (d) a circle with A inside
13. 13.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) little stars (c) straight lines (d) dotted circles
14. 14.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) battery (b) cell (c) voltmeter (d) switch
15. 15.True or false: two equal parallel lines is the symbol for a junction. (a) True (b) False
16. 16.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) battery (c) resistor (d) motor
17. 17.Which drawing is the symbol for a wire? (a) a circle with V inside (b) triangle against a bar (c) many long-short pairs (d) a straight line
18. 18.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) diode (b) junction (c) motor (d) capacitor
19. 19.Which drawing is the symbol for a junction? (a) a line lifted at a gap (b) a circle with an X in it (c) a dot where wires meet (d) two equal parallel lines
20. 20.True or false: a plain rectangle is the symbol for a bulb. (a) False (b) True
21. 21.✏️ In a circuit diagram, which part is drawn as a straight line? (a) battery (b) motor (c) ammeter (d) wire
22. 22.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
23. 23.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) capacitor (c) junction (d) wire
24. 24.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) diode (b) cell (c) ammeter (d) voltmeter
25. 25.True or false: one tall, one short bar is the symbol for a switch. (a) False (b) True
26. 26.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) to hide the circuit (c) to make it colourful (d) quick and clear for all
27. 27.Which drawing is the symbol for a switch? (a) a small empty box (b) a long and a short line (c) a line lifted at a gap (d) many long-short pairs
28. 28.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) bulb (b) resistor (c) voltmeter (d) ammeter
29. 29.Which drawing is the symbol for a diode? (a) triangle, bar and arrows (b) a plain rectangle (c) a small empty box (d) triangle against a bar
30. 30.Which drawing is the symbol for a voltmeter? (a) a straight line (b) triangle against a bar (c) a circle with V inside (d) a circle with A inside
31. 31.True or false: triangle against a bar is the symbol for a switch. (a) True (b) False
32. 32.True or false: a circle with A inside is the symbol for an ammeter. (a) True (b) False
33. 33.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) wire (b) ammeter (c) resistor (d) cell
34. 34.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) switch (b) wire (c) LED (d) battery
35. 35.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) switch (b) battery (c) voltmeter (d) motor
36. 36.Which drawing is the symbol for a cell? (a) two equal parallel lines (b) one tall, one short bar (c) a plain rectangle (d) a circle with a cross
37. 37.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
38. 38.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) a small empty box (c) two or more cell symbols (d) a circle with a cross
39. 39.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
40. 40.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False

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