Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 198 · 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 V inside? (a) switch (b) cell (c) voltmeter (d) ammeter
2. 2.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) battery (b) cell (c) LED (d) bulb
3. 3.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
4. 4.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the shorter line (c) the longer line (d) neither line
5. 5.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) symbols are heavier (c) quick and clear for all (d) to make it colourful
6. 6.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) motor (b) cell (c) bulb (d) ammeter
7. 7.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) straight lines (c) dotted circles (d) little stars
8. 8.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) ammeter (c) bulb (d) battery
9. 9.Which drawing is the symbol for an LED? (a) a line lifted at a gap (b) a circle with an X in it (c) triangle, bar and arrows (d) a long and a short line
10. 10.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) wire (b) capacitor (c) voltmeter (d) diode
11. 11.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) triangle against a bar (c) triangle, bar and arrows (d) a circle with A inside
12. 12.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) cell (b) LED (c) battery (d) resistor
13. 13.True or false: two equal parallel lines is the symbol for a resistor. (a) False (b) True
14. 14.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) LED (b) ammeter (c) bulb (d) diode
15. 15.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) triangle, bar and arrows (c) many long-short pairs (d) a long and a short line
16. 16.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) wire (b) LED (c) battery (d) diode
17. 17.Which drawing is the symbol for a motor? (a) a circle with A inside (b) a circle with M inside (c) a straight line (d) triangle against a bar
18. 18.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
19. 19.Which drawing is the symbol for a wire? (a) a straight line (b) one tall, one short bar (c) a circle with a cross (d) many long-short pairs
20. 20.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
21. 21.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) capacitor (b) LED (c) cell (d) diode
22. 22.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) junction (b) resistor (c) battery (d) voltmeter
23. 23.True or false: triangle against a bar is the symbol for a diode. (a) True (b) False
24. 24.✏️ In a circuit diagram, which part is drawn as a straight line? (a) wire (b) LED (c) battery (d) cell
25. 25.Which drawing is the symbol for a capacitor? (a) a long and a short line (b) two equal parallel lines (c) a small empty box (d) one tall, one short bar
26. 26.Which drawing is the symbol for a cell? (a) a long and a short line (b) many long-short pairs (c) a circle with M inside (d) triangle against a bar
27. 27.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) junction (b) LED (c) battery (d) motor
28. 28.True or false: a small empty box is the symbol for a junction. (a) False (b) True
29. 29.Which drawing is the symbol for a diode? (a) one tall, one short bar (b) a circle with an X in it (c) triangle against a bar (d) a long and a short line
30. 30.True or false: a circle with an X in it is the symbol for a motor. (a) False (b) True
31. 31.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) resistor (b) LED (c) cell (d) diode
32. 32.True or false: a circle with A inside is the symbol for a wire. (a) True (b) False
33. 33.Which drawing is the symbol for a junction? (a) a dot where wires meet (b) a circle with V inside (c) two or more cell symbols (d) many long-short pairs
34. 34.True or false: a circle with V inside is the symbol for a diode. (a) True (b) False
35. 35.True or false: a circle with A inside is the symbol for a resistor. (a) False (b) True
36. 36.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
37. 37.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) resistor (b) switch (c) battery (d) motor
38. 38.True or false: two or more cell symbols is the symbol for a switch. (a) True (b) False
39. 39.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
40. 40.True or false: two or more cell symbols is the symbol for a cell. (a) True (b) False

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