Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 965 · 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 two or more cell symbols? (a) capacitor (b) battery (c) voltmeter (d) switch
2. 2.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) bulb (b) switch (c) resistor (d) capacitor
3. 3.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) voltmeter (b) diode (c) switch (d) resistor
4. 4.Which drawing is the symbol for a wire? (a) a straight line (b) many long-short pairs (c) a circle with V inside (d) a circle with a cross
5. 5.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) bulb (b) diode (c) battery (d) junction
6. 6.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) neither line (c) the longer line (d) the shorter line
7. 7.True or false: a straight line is the symbol for a resistor. (a) True (b) False
8. 8.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) motor (b) ammeter (c) resistor (d) cell
9. 9.True or false: a long and a short line is the symbol for an ammeter. (a) False (b) True
10. 10.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) junction (b) capacitor (c) bulb (d) switch
11. 11.Which drawing is the symbol for a switch? (a) a dot where wires meet (b) a circle with M inside (c) a plain rectangle (d) a line lifted at a gap
12. 12.✏️ 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
13. 13.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
14. 14.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) junction (b) bulb (c) motor (d) diode
15. 15.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) wavy lines (c) straight lines (d) little stars
16. 16.Which drawing is the symbol for an LED? (a) a circle with V inside (b) triangle against a bar (c) two equal parallel lines (d) triangle, bar and arrows
17. 17.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) resistor (b) wire (c) switch (d) cell
18. 18.True or false: a circle with M inside is the symbol for a switch. (a) False (b) True
19. 19.Which drawing is the symbol for a junction? (a) triangle, bar and arrows (b) two or more cell symbols (c) a dot where wires meet (d) a circle with M inside
20. 20.Which drawing is the symbol for a motor? (a) a circle with M inside (b) a dot where wires meet (c) a straight line (d) a circle with an X in it
21. 21.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
22. 22.Which drawing is the symbol for an ammeter? (a) a dot where wires meet (b) triangle, bar and arrows (c) a long and a short line (d) a circle with A inside
23. 23.Which drawing is the symbol for a voltmeter? (a) a straight line (b) a plain rectangle (c) a circle with a cross (d) a circle with V inside
24. 24.Which drawing is the symbol for a resistor? (a) a dot where wires meet (b) many long-short pairs (c) a plain rectangle (d) triangle against a bar
25. 25.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) LED (b) ammeter (c) voltmeter (d) battery
26. 26.True or false: a plain rectangle is the symbol for a motor. (a) True (b) False
27. 27.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
28. 28.True or false: one tall, one short bar is the symbol for a diode. (a) False (b) True
29. 29.Which drawing is the symbol for a resistor? (a) a small empty box (b) a circle with an X in it (c) triangle against a bar (d) a straight line
30. 30.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
31. 31.Which drawing is the symbol for a capacitor? (a) many long-short pairs (b) a small empty box (c) two equal parallel lines (d) a long and a short line
32. 32.Which drawing is the symbol for a bulb? (a) two or more cell symbols (b) a long and a short line (c) two equal parallel lines (d) a circle with a cross
33. 33.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) wire (b) motor (c) cell (d) ammeter
34. 34.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) diode (b) voltmeter (c) junction (d) capacitor
35. 35.True or false: two or more cell symbols is the symbol for a wire. (a) False (b) True
36. 36.True or false: a long and a short line is the symbol for a junction. (a) True (b) False
37. 37.Which drawing is the symbol for a diode? (a) a circle with a cross (b) one tall, one short bar (c) triangle against a bar (d) a circle with V inside
38. 38.True or false: a dot where wires meet is the symbol for a bulb. (a) False (b) True
39. 39.True or false: a dot where wires meet is the symbol for a diode. (a) False (b) True
40. 40.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) bulb (b) LED (c) cell (d) switch

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