Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 977 · 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 cell symbol, which line is the + terminal? (a) the shorter line (b) neither line (c) both lines (d) the longer line
2. 2.Which drawing is the symbol for a diode? (a) many long-short pairs (b) a long and a short line (c) a circle with a cross (d) triangle against a bar
3. 3.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
4. 4.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) little stars (c) dotted circles (d) straight lines
5. 5.True or false: a long and a short line is the symbol for a wire. (a) False (b) True
6. 6.✏️ In a circuit diagram, which part is drawn as a straight line? (a) switch (b) wire (c) capacitor (d) resistor
7. 7.Which drawing is the symbol for a motor? (a) a circle with M inside (b) triangle against a bar (c) two or more cell symbols (d) many long-short pairs
8. 8.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
9. 9.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) cell (b) battery (c) junction (d) capacitor
10. 10.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) a circle with a cross
11. 11.Which drawing is the symbol for an ammeter? (a) a line lifted at a gap (b) a long and a short line (c) a circle with A inside (d) many long-short pairs
12. 12.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) symbols are heavier (c) to make it colourful (d) quick and clear for all
13. 13.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) bulb (b) voltmeter (c) junction (d) resistor
14. 14.Which drawing is the symbol for an LED? (a) a circle with V inside (b) a long and a short line (c) a dot where wires meet (d) triangle, bar and arrows
15. 15.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) ammeter (b) battery (c) voltmeter (d) junction
16. 16.Which drawing is the symbol for a junction? (a) triangle against a bar (b) a dot where wires meet (c) a circle with a cross (d) a long and a short line
17. 17.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) capacitor (b) wire (c) resistor (d) battery
18. 18.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
19. 19.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) diode (b) cell (c) voltmeter (d) junction
20. 20.True or false: a circle with an X in it is the symbol for a diode. (a) False (b) True
21. 21.True or false: a circle with a cross is the symbol for a motor. (a) False (b) True
22. 22.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) capacitor (b) wire (c) bulb (d) battery
23. 23.True or false: a long and a short line is the symbol for a diode. (a) False (b) True
24. 24.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
25. 25.True or false: a straight line is the symbol for a wire. (a) False (b) True
26. 26.Which drawing is the symbol for a switch? (a) two or more cell symbols (b) a dot where wires meet (c) a line lifted at a gap (d) a long and a short line
27. 27.Which drawing is the symbol for a battery? (a) two or more cell symbols (b) a circle with M inside (c) a straight line (d) two equal parallel lines
28. 28.Which drawing is the symbol for a wire? (a) a straight line (b) a circle with V inside (c) many long-short pairs (d) a circle with M inside
29. 29.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
30. 30.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) switch (b) cell (c) ammeter (d) resistor
31. 31.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) wire (c) battery (d) voltmeter
32. 32.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) bulb (b) switch (c) junction (d) capacitor
33. 33.True or false: triangle against a bar is the symbol for a bulb. (a) True (b) False
34. 34.True or false: a straight line is the symbol for an ammeter. (a) False (b) True
35. 35.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
36. 36.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) motor (b) resistor (c) LED (d) battery
37. 37.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) bulb (b) LED (c) voltmeter (d) junction
38. 38.Which drawing is the symbol for a voltmeter? (a) a long and a short line (b) a plain rectangle (c) a circle with V inside (d) one tall, one short bar
39. 39.Which drawing is the symbol for a capacitor? (a) a long and a short line (b) a small empty box (c) two equal parallel lines (d) a dot where wires meet
40. 40.True or false: one tall, one short bar is the symbol for a motor. (a) True (b) False

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