Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 185 · 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 triangle against a bar? (a) diode (b) motor (c) bulb (d) wire
2. 2.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) bulb (c) switch (d) cell
3. 3.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) to hide the circuit (c) symbols are heavier (d) to make it colourful
4. 4.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
5. 5.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) voltmeter (b) LED (c) bulb (d) motor
6. 6.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) many long-short pairs (c) two equal parallel lines (d) a circle with a cross
7. 7.Which drawing is the symbol for a wire? (a) triangle, bar and arrows (b) a circle with V inside (c) a straight line (d) a long and a short line
8. 8.Which drawing is the symbol for a resistor? (a) a plain rectangle (b) a circle with A inside (c) a circle with M inside (d) a circle with V inside
9. 9.True or false: two equal parallel lines is the symbol for a capacitor. (a) True (b) False
10. 10.Which drawing is the symbol for a diode? (a) triangle against a bar (b) a small empty box (c) a long and a short line (d) two or more cell symbols
11. 11.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) switch (b) cell (c) ammeter (d) bulb
12. 12.Which drawing is the symbol for an ammeter? (a) a long and a short line (b) a circle with M inside (c) a small empty box (d) a circle with A inside
13. 13.True or false: a circle with M inside is the symbol for a junction. (a) False (b) True
14. 14.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) battery (b) capacitor (c) LED (d) motor
15. 15.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
16. 16.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) junction (b) bulb (c) wire (d) ammeter
17. 17.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) capacitor (b) cell (c) switch (d) wire
18. 18.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
19. 19.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) wavy lines (c) dotted circles (d) little stars
20. 20.True or false: a line lifted at a gap is the symbol for a cell. (a) True (b) False
21. 21.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) LED (b) battery (c) diode (d) voltmeter
22. 22.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
23. 23.True or false: a line lifted at a gap is the symbol for an ammeter. (a) True (b) False
24. 24.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) LED (b) voltmeter (c) junction (d) bulb
25. 25.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the longer line (c) neither line (d) the shorter line
26. 26.Which drawing is the symbol for a switch? (a) a small empty box (b) a circle with a cross (c) a line lifted at a gap (d) a long and a short line
27. 27.True or false: a dot where wires meet is the symbol for a voltmeter. (a) False (b) True
28. 28.Which drawing is the symbol for a bulb? (a) a circle with a cross (b) a plain rectangle (c) a circle with V inside (d) a long and a short line
29. 29.Which drawing is the symbol for an LED? (a) a plain rectangle (b) a straight line (c) triangle, bar and arrows (d) many long-short pairs
30. 30.True or false: a plain rectangle is the symbol for a capacitor. (a) True (b) False
31. 31.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
32. 32.Which drawing is the symbol for a motor? (a) a circle with M inside (b) a circle with A inside (c) two or more cell symbols (d) a circle with an X in it
33. 33.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) junction (b) diode (c) bulb (d) voltmeter
34. 34.Which drawing is the symbol for a cell? (a) triangle, bar and arrows (b) a circle with M inside (c) a line lifted at a gap (d) one tall, one short bar
35. 35.True or false: a long and a short line is the symbol for a diode. (a) True (b) False
36. 36.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
37. 37.True or false: a circle with V inside is the symbol for a bulb. (a) False (b) True
38. 38.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
39. 39.True or false: two equal parallel lines is the symbol for a voltmeter. (a) False (b) True
40. 40.True or false: a circle with M inside is the symbol for a resistor. (a) True (b) False

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