Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 381 · 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.True or false: a circle with a cross is the symbol for a junction. (a) True (b) False
2. 2.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
3. 3.True or false: one tall, one short bar is the symbol for a motor. (a) False (b) True
4. 4.True or false: triangle against a bar is the symbol for a wire. (a) True (b) False
5. 5.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) straight lines (c) wavy lines (d) little stars
6. 6.True or false: a straight line is the symbol for a wire. (a) False (b) True
7. 7.Which drawing is the symbol for an ammeter? (a) many long-short pairs (b) a circle with A inside (c) a line lifted at a gap (d) a circle with a cross
8. 8.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) voltmeter (b) bulb (c) switch (d) capacitor
9. 9.Which drawing is the symbol for a voltmeter? (a) a long and a short line (b) a circle with V inside (c) triangle, bar and arrows (d) a circle with a cross
10. 10.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) symbols are heavier (c) quick and clear for all (d) to make it colourful
11. 11.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) diode (b) wire (c) cell (d) voltmeter
12. 12.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) capacitor (b) battery (c) resistor (d) ammeter
13. 13.Which drawing is the symbol for a bulb? (a) a dot where wires meet (b) a circle with an X in it (c) two or more cell symbols (d) one tall, one short bar
14. 14.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) the shorter line (c) both lines (d) the longer line
15. 15.True or false: triangle against a bar is the symbol for a switch. (a) True (b) False
16. 16.Which drawing is the symbol for a motor? (a) a circle with an X in it (b) a circle with V inside (c) a circle with M inside (d) a long and a short line
17. 17.True or false: triangle against a bar is the symbol for a resistor. (a) False (b) True
18. 18.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) junction (b) resistor (c) motor (d) switch
19. 19.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
20. 20.True or false: a long and a short line is the symbol for a wire. (a) True (b) False
21. 21.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) cell (b) resistor (c) bulb (d) battery
22. 22.True or false: triangle against a bar is the symbol for a diode. (a) True (b) False
23. 23.Which drawing is the symbol for a cell? (a) a circle with A inside (b) a dot where wires meet (c) one tall, one short bar (d) many long-short pairs
24. 24.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) motor (b) bulb (c) LED (d) battery
25. 25.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) junction (b) voltmeter (c) cell (d) switch
26. 26.True or false: a circle with a cross is the symbol for an ammeter. (a) True (b) False
27. 27.Which drawing is the symbol for a bulb? (a) a dot where wires meet (b) triangle, bar and arrows (c) a circle with a cross (d) two or more cell symbols
28. 28.Which drawing is the symbol for a resistor? (a) many long-short pairs (b) a circle with a cross (c) a small empty box (d) a circle with an X in it
29. 29.Which drawing is the symbol for a junction? (a) many long-short pairs (b) two equal parallel lines (c) a dot where wires meet (d) triangle against a bar
30. 30.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
31. 31.Which drawing is the symbol for a battery? (a) many long-short pairs (b) a circle with V inside (c) a small empty box (d) one tall, one short bar
32. 32.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) diode (c) resistor (d) motor
33. 33.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) a long and a short line (c) many long-short pairs (d) a dot where wires meet
34. 34.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
35. 35.True or false: two or more cell symbols is the symbol for a cell. (a) False (b) True
36. 36.True or false: a line lifted at a gap is the symbol for a junction. (a) True (b) False
37. 37.True or false: a circle with V inside is the symbol for a cell. (a) True (b) False
38. 38.✏️ In a circuit diagram, which part is drawn as a straight line? (a) capacitor (b) wire (c) cell (d) ammeter
39. 39.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) switch (b) wire (c) cell (d) capacitor
40. 40.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False

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