Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 497 · 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 a circle with M inside? (a) bulb (b) junction (c) motor (d) battery
2. 2.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) ammeter (b) LED (c) diode (d) battery
3. 3.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) quick and clear for all (c) to make it colourful (d) symbols are heavier
4. 4.True or false: a plain rectangle is the symbol for an LED. (a) False (b) True
5. 5.Which drawing is the symbol for a bulb? (a) a circle with M inside (b) a circle with a cross (c) two equal parallel lines (d) two or more cell symbols
6. 6.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
7. 7.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) wavy lines (c) straight lines (d) little stars
8. 8.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the longer line (c) neither line (d) the shorter line
9. 9.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) wire (b) bulb (c) junction (d) cell
10. 10.Which drawing is the symbol for a wire? (a) a circle with A inside (b) triangle against a bar (c) two equal parallel lines (d) a straight line
11. 11.Which drawing is the symbol for a battery? (a) triangle, bar and arrows (b) a line lifted at a gap (c) two or more cell symbols (d) two equal parallel lines
12. 12.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) motor (b) capacitor (c) wire (d) cell
13. 13.Which drawing is the symbol for a voltmeter? (a) triangle, bar and arrows (b) a long and a short line (c) a dot where wires meet (d) a circle with V inside
14. 14.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) bulb (b) wire (c) ammeter (d) capacitor
15. 15.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
16. 16.True or false: one tall, one short bar is the symbol for an LED. (a) True (b) False
17. 17.True or false: a long and a short line is the symbol for an LED. (a) False (b) True
18. 18.✏️ In a circuit diagram, which part is drawn as a straight line? (a) voltmeter (b) ammeter (c) wire (d) switch
19. 19.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) switch (b) resistor (c) diode (d) cell
20. 20.Which drawing is the symbol for a motor? (a) a circle with M inside (b) a dot where wires meet (c) many long-short pairs (d) a small empty box
21. 21.True or false: a plain rectangle is the symbol for a switch. (a) True (b) False
22. 22.Which drawing is the symbol for a battery? (a) a line lifted at a gap (b) many long-short pairs (c) one tall, one short bar (d) two equal parallel lines
23. 23.Which drawing is the symbol for a capacitor? (a) one tall, one short bar (b) two equal parallel lines (c) a line lifted at a gap (d) a plain rectangle
24. 24.True or false: a dot where wires meet is the symbol for a diode. (a) True (b) False
25. 25.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) diode (b) ammeter (c) capacitor (d) voltmeter
26. 26.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) voltmeter (b) cell (c) battery (d) switch
27. 27.Which drawing is the symbol for an ammeter? (a) one tall, one short bar (b) a small empty box (c) a circle with A inside (d) a long and a short line
28. 28.Which drawing is the symbol for a switch? (a) a circle with an X in it (b) a plain rectangle (c) a circle with A inside (d) a line lifted at a gap
29. 29.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) battery (b) resistor (c) switch (d) ammeter
30. 30.True or false: two or more cell symbols is the symbol for a voltmeter. (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 dot where wires meet is the symbol for a switch. (a) False (b) True
33. 33.Which drawing is the symbol for a junction? (a) triangle, bar and arrows (b) a circle with an X in it (c) a dot where wires meet (d) two or more cell symbols
34. 34.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) ammeter (b) bulb (c) LED (d) motor
35. 35.True or false: a straight line is the symbol for a wire. (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 M inside is the symbol for a junction. (a) True (b) False
38. 38.True or false: triangle, bar and arrows is the symbol for a bulb. (a) False (b) True
39. 39.Which drawing is the symbol for an LED? (a) triangle, bar and arrows (b) a plain rectangle (c) one tall, one short bar (d) many long-short pairs
40. 40.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True

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