Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 459 · 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 dot where wires meet is the symbol for an LED. (a) False (b) True
2. 2.Which drawing is the symbol for a battery? (a) a small empty box (b) a straight line (c) a circle with M inside (d) many long-short pairs
3. 3.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
4. 4.Which drawing is the symbol for a switch? (a) triangle, bar and arrows (b) a small empty box (c) a long and a short line (d) a line lifted at a gap
5. 5.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) junction (b) diode (c) motor (d) switch
6. 6.Which drawing is the symbol for a junction? (a) many long-short pairs (b) two or more cell symbols (c) a dot where wires meet (d) a straight line
7. 7.Which drawing is the symbol for an ammeter? (a) a circle with an X in it (b) two or more cell symbols (c) a line lifted at a gap (d) a circle with A inside
8. 8.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) switch (c) voltmeter (d) capacitor
9. 9.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) neither line (c) the shorter line (d) both lines
10. 10.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) wire (b) cell (c) bulb (d) motor
11. 11.True or false: a straight line is the symbol for a junction. (a) False (b) True
12. 12.Which drawing is the symbol for a bulb? (a) one tall, one short bar (b) triangle against a bar (c) a plain rectangle (d) a circle with a cross
13. 13.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) resistor (c) capacitor (d) ammeter
14. 14.True or false: a circle with a cross is the symbol for a battery. (a) True (b) False
15. 15.True or false: a circle with A inside is the symbol for an ammeter. (a) True (b) False
16. 16.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) cell (b) ammeter (c) bulb (d) voltmeter
17. 17.Which drawing is the symbol for a voltmeter? (a) a line lifted at a gap (b) many long-short pairs (c) a circle with V inside (d) a circle with M inside
18. 18.✏️ In a circuit diagram, which part is drawn as a straight line? (a) capacitor (b) wire (c) bulb (d) cell
19. 19.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) straight lines (c) dotted circles (d) little stars
20. 20.Which drawing is the symbol for a motor? (a) a small empty box (b) a dot where wires meet (c) a circle with M inside (d) a line lifted at a gap
21. 21.Which drawing is the symbol for a capacitor? (a) a line lifted at a gap (b) two equal parallel lines (c) many long-short pairs (d) a small empty box
22. 22.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
23. 23.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) symbols are heavier (c) to make it colourful (d) to hide the circuit
24. 24.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
25. 25.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) LED (b) diode (c) voltmeter (d) cell
26. 26.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) diode (b) battery (c) bulb (d) junction
27. 27.True or false: a small empty box is the symbol for a bulb. (a) True (b) False
28. 28.Which drawing is the symbol for a battery? (a) a circle with A inside (b) a circle with M inside (c) two or more cell symbols (d) a small empty box
29. 29.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) voltmeter (b) bulb (c) resistor (d) wire
30. 30.True or false: a circle with V inside is the symbol for a capacitor. (a) True (b) False
31. 31.True or false: a circle with M inside is the symbol for a motor. (a) True (b) False
32. 32.True or false: a line lifted at a gap is the symbol for a voltmeter. (a) False (b) True
33. 33.Which drawing is the symbol for a resistor? (a) a small empty box (b) a circle with an X in it (c) a circle with M inside (d) many long-short pairs
34. 34.True or false: a small empty box is the symbol for an ammeter. (a) True (b) False
35. 35.True or false: many long-short pairs is the symbol for a wire. (a) False (b) True
36. 36.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) bulb (b) voltmeter (c) resistor (d) battery
37. 37.True or false: many long-short pairs is the symbol for a diode. (a) False (b) True
38. 38.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) diode (b) ammeter (c) battery (d) cell
39. 39.Which drawing is the symbol for an LED? (a) a circle with V inside (b) a circle with M inside (c) triangle against a bar (d) triangle, bar and arrows
40. 40.Which drawing is the symbol for a cell? (a) a dot where wires meet (b) a circle with M inside (c) one tall, one short bar (d) many long-short pairs

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