Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 985 · 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 cell symbol, which line is the + terminal? (a) the longer line (b) the shorter line (c) both lines (d) neither line
2. 2.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) switch (c) battery (d) voltmeter
3. 3.Which drawing is the symbol for a battery? (a) a circle with an X in it (b) a plain rectangle (c) a circle with A inside (d) many long-short pairs
4. 4.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
5. 5.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) wire (b) battery (c) resistor (d) voltmeter
6. 6.True or false: a circle with V inside is the symbol for a capacitor. (a) True (b) False
7. 7.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) a plain rectangle (c) a circle with V inside (d) a long and a short line
8. 8.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) diode (b) ammeter (c) LED (d) motor
9. 9.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
10. 10.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) capacitor (b) cell (c) resistor (d) voltmeter
11. 11.True or false: a straight line is the symbol for a junction. (a) False (b) True
12. 12.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) dotted circles (c) wavy lines (d) straight lines
13. 13.Which drawing is the symbol for a capacitor? (a) a circle with an X in it (b) two equal parallel lines (c) a long and a short line (d) one tall, one short bar
14. 14.Which drawing is the symbol for a bulb? (a) a long and a short line (b) triangle, bar and arrows (c) a circle with a cross (d) a line lifted at a gap
15. 15.True or false: a dot where wires meet is the symbol for a capacitor. (a) False (b) True
16. 16.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) to make it colourful (c) quick and clear for all (d) symbols are heavier
17. 17.Which drawing is the symbol for a battery? (a) a straight line (b) two or more cell symbols (c) a dot where wires meet (d) triangle against a bar
18. 18.True or false: a small empty box is the symbol for a motor. (a) False (b) True
19. 19.Which drawing is the symbol for a junction? (a) two equal parallel lines (b) a small empty box (c) a dot where wires meet (d) a circle with A inside
20. 20.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) junction (b) LED (c) resistor (d) cell
21. 21.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) motor (b) battery (c) ammeter (d) bulb
22. 22.True or false: a circle with an X in it is the symbol for a wire. (a) True (b) False
23. 23.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
24. 24.Which drawing is the symbol for an LED? (a) triangle, bar and arrows (b) two equal parallel lines (c) a circle with a cross (d) a long and a short line
25. 25.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) cell (b) voltmeter (c) LED (d) switch
26. 26.Which drawing is the symbol for a cell? (a) two or more cell symbols (b) a dot where wires meet (c) a circle with a cross (d) a long and a short line
27. 27.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
28. 28.True or false: a small empty box is the symbol for a cell. (a) False (b) True
29. 29.Which drawing is the symbol for a voltmeter? (a) a circle with a cross (b) triangle against a bar (c) a plain rectangle (d) a circle with V inside
30. 30.Which drawing is the symbol for a diode? (a) two or more cell symbols (b) a line lifted at a gap (c) triangle against a bar (d) triangle, bar and arrows
31. 31.True or false: a straight line is the symbol for a wire. (a) True (b) False
32. 32.True or false: a circle with a cross is the symbol for a junction. (a) True (b) False
33. 33.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) wire (b) battery (c) diode (d) capacitor
34. 34.True or false: a line lifted at a gap is the symbol for a resistor. (a) False (b) True
35. 35.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
36. 36.True or false: a circle with a cross is the symbol for a cell. (a) False (b) True
37. 37.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) wire (b) LED (c) bulb (d) battery
38. 38.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) voltmeter (c) diode (d) capacitor
39. 39.True or false: a dot where wires meet is the symbol for a switch. (a) True (b) False
40. 40.True or false: many long-short pairs is the symbol for a bulb. (a) False (b) True

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