Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 625 · 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 M inside is the symbol for a motor. (a) True (b) False
2. 2.True or false: a line lifted at a gap is the symbol for a diode. (a) False (b) True
3. 3.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) voltmeter (b) bulb (c) LED (d) wire
4. 4.True or false: one tall, one short bar is the symbol for a battery. (a) False (b) True
5. 5.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
6. 6.Which drawing is the symbol for a bulb? (a) two or more cell symbols (b) triangle, bar and arrows (c) a circle with V inside (d) a circle with an X in it
7. 7.Which drawing is the symbol for an LED? (a) two equal parallel lines (b) triangle, bar and arrows (c) a circle with a cross (d) a plain rectangle
8. 8.Which drawing is the symbol for a wire? (a) a circle with an X in it (b) a plain rectangle (c) a dot where wires meet (d) a straight line
9. 9.Which drawing is the symbol for a switch? (a) two or more cell symbols (b) a circle with A inside (c) two equal parallel lines (d) a line lifted at a gap
10. 10.Which drawing is the symbol for a capacitor? (a) one tall, one short bar (b) a circle with A inside (c) a circle with a cross (d) two equal parallel lines
11. 11.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) voltmeter (b) diode (c) capacitor (d) bulb
12. 12.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) junction (b) battery (c) diode (d) switch
13. 13.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) switch (b) capacitor (c) battery (d) cell
14. 14.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) straight lines (c) wavy lines (d) dotted circles
15. 15.Which drawing is the symbol for a diode? (a) triangle against a bar (b) a circle with a cross (c) one tall, one short bar (d) two equal parallel lines
16. 16.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) a circle with A inside (c) two or more cell symbols (d) a circle with M inside
17. 17.Which drawing is the symbol for a battery? (a) a circle with M inside (b) a plain rectangle (c) a circle with V inside (d) two or more cell symbols
18. 18.Which drawing is the symbol for a resistor? (a) one tall, one short bar (b) a line lifted at a gap (c) triangle against a bar (d) a plain rectangle
19. 19.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) symbols are heavier (c) to hide the circuit (d) quick and clear for all
20. 20.✏️ In a circuit diagram, which part is drawn as a straight line? (a) battery (b) bulb (c) wire (d) ammeter
21. 21.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
22. 22.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) voltmeter (b) LED (c) cell (d) bulb
23. 23.Which drawing is the symbol for a cell? (a) many long-short pairs (b) a circle with M inside (c) a long and a short line (d) a circle with V inside
24. 24.True or false: many long-short pairs is the symbol for a junction. (a) True (b) False
25. 25.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
26. 26.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) capacitor (b) voltmeter (c) ammeter (d) cell
27. 27.Which drawing is the symbol for a cell? (a) a circle with A inside (b) one tall, one short bar (c) a circle with an X in it (d) two equal parallel lines
28. 28.Which drawing is the symbol for a battery? (a) a circle with an X in it (b) a circle with M inside (c) a long and a short line (d) many long-short pairs
29. 29.True or false: a line lifted at a gap is the symbol for a motor. (a) True (b) False
30. 30.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
31. 31.Which drawing is the symbol for an ammeter? (a) one tall, one short bar (b) a plain rectangle (c) a circle with A inside (d) a circle with M inside
32. 32.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) capacitor (b) bulb (c) resistor (d) wire
33. 33.True or false: a circle with a cross is the symbol for a diode. (a) False (b) True
34. 34.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) LED (b) wire (c) capacitor (d) battery
35. 35.Which drawing is the symbol for a motor? (a) a circle with V inside (b) a long and a short line (c) a circle with M inside (d) a circle with a cross
36. 36.True or false: two equal parallel lines is the symbol for a motor. (a) False (b) True
37. 37.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) both lines (c) the longer line (d) the shorter line
38. 38.Which drawing is the symbol for a resistor? (a) a straight line (b) one tall, one short bar (c) a circle with an X in it (d) a small empty box
39. 39.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) motor (b) junction (c) bulb (d) cell
40. 40.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) ammeter (b) wire (c) cell (d) resistor

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