Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 662 · 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.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) to hide the circuit (c) to make it colourful (d) symbols are heavier
2. 2.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) battery (b) motor (c) wire (d) ammeter
3. 3.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) resistor (b) junction (c) bulb (d) diode
4. 4.✏️ In a circuit diagram, which part is drawn as a straight line? (a) bulb (b) LED (c) wire (d) ammeter
5. 5.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
6. 6.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) straight lines (c) dotted circles (d) wavy lines
7. 7.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) both lines (c) neither line (d) the longer line
8. 8.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) junction (b) diode (c) wire (d) motor
9. 9.Which drawing is the symbol for an LED? (a) a circle with M inside (b) a small empty box (c) triangle against a bar (d) triangle, bar and arrows
10. 10.True or false: two or more cell symbols is the symbol for an ammeter. (a) True (b) False
11. 11.Which drawing is the symbol for a battery? (a) a circle with A inside (b) a long and a short line (c) many long-short pairs (d) a circle with M inside
12. 12.True or false: a long and a short line is the symbol for a switch. (a) False (b) True
13. 13.Which drawing is the symbol for a wire? (a) two or more cell symbols (b) a straight line (c) a dot where wires meet (d) a line lifted at a gap
14. 14.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
15. 15.True or false: triangle against a bar is the symbol for a junction. (a) False (b) True
16. 16.Which drawing is the symbol for a resistor? (a) one tall, one short bar (b) a circle with M inside (c) a circle with V inside (d) a small empty box
17. 17.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) bulb (b) capacitor (c) resistor (d) LED
18. 18.True or false: one tall, one short bar is the symbol for a battery. (a) True (b) False
19. 19.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) bulb (b) cell (c) battery (d) ammeter
20. 20.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
21. 21.Which drawing is the symbol for a voltmeter? (a) triangle, bar and arrows (b) triangle against a bar (c) a circle with V inside (d) a line lifted at a gap
22. 22.Which drawing is the symbol for a bulb? (a) two equal parallel lines (b) a circle with a cross (c) a long and a short line (d) triangle, bar and arrows
23. 23.True or false: a dot where wires meet is the symbol for a cell. (a) True (b) False
24. 24.True or false: a dot where wires meet is the symbol for a voltmeter. (a) True (b) False
25. 25.True or false: a circle with a cross is the symbol for an ammeter. (a) True (b) False
26. 26.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) cell (b) motor (c) battery (d) bulb
27. 27.True or false: a dot where wires meet is the symbol for a switch. (a) False (b) True
28. 28.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) LED (b) capacitor (c) bulb (d) battery
29. 29.True or false: two equal parallel lines is the symbol for a battery. (a) False (b) True
30. 30.Which drawing is the symbol for a resistor? (a) a circle with V inside (b) two equal parallel lines (c) triangle, bar and arrows (d) a plain rectangle
31. 31.True or false: two or more cell symbols is the symbol for a switch. (a) False (b) True
32. 32.True or false: a long and a short line is the symbol for a capacitor. (a) False (b) True
33. 33.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) resistor (b) cell (c) motor (d) battery
34. 34.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) battery (b) diode (c) resistor (d) bulb
35. 35.Which drawing is the symbol for a switch? (a) a long and a short line (b) one tall, one short bar (c) a circle with a cross (d) a line lifted at a gap
36. 36.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) capacitor (b) voltmeter (c) ammeter (d) cell
37. 37.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
38. 38.Which drawing is the symbol for a motor? (a) a circle with M inside (b) a long and a short line (c) a line lifted at a gap (d) one tall, one short bar
39. 39.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) capacitor (b) motor (c) LED (d) ammeter
40. 40.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False

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