Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 517 · 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 small empty box? (a) diode (b) resistor (c) switch (d) bulb
2. 2.Which drawing is the symbol for a bulb? (a) a straight line (b) triangle, bar and arrows (c) two equal parallel lines (d) a circle with a cross
3. 3.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) a circle with V inside (c) a straight line (d) a circle with M inside
4. 4.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) neither line (c) the longer line (d) the shorter line
5. 5.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
6. 6.True or false: triangle against a bar is the symbol for a bulb. (a) True (b) False
7. 7.✏️ In a circuit diagram, which part is drawn as a straight line? (a) capacitor (b) cell (c) junction (d) wire
8. 8.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) bulb (b) switch (c) motor (d) resistor
9. 9.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) dotted circles (c) wavy lines (d) straight lines
10. 10.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) resistor (b) ammeter (c) diode (d) cell
11. 11.Which drawing is the symbol for a voltmeter? (a) a circle with an X in it (b) a circle with A inside (c) a circle with V inside (d) triangle against a bar
12. 12.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) wire (b) battery (c) switch (d) voltmeter
13. 13.✏️ 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
14. 14.True or false: a circle with V inside is the symbol for a resistor. (a) False (b) True
15. 15.Which drawing is the symbol for a capacitor? (a) a circle with M inside (b) a circle with V inside (c) a line lifted at a gap (d) two equal parallel lines
16. 16.Which drawing is the symbol for a resistor? (a) a plain rectangle (b) two equal parallel lines (c) a long and a short line (d) many long-short pairs
17. 17.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) diode (c) battery (d) switch
18. 18.Which drawing is the symbol for a wire? (a) many long-short pairs (b) a circle with a cross (c) one tall, one short bar (d) a straight line
19. 19.True or false: a circle with A inside is the symbol for a resistor. (a) True (b) False
20. 20.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
21. 21.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
22. 22.Which drawing is the symbol for a junction? (a) a circle with M inside (b) triangle against a bar (c) triangle, bar and arrows (d) a dot where wires meet
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 circle with V inside? (a) junction (b) voltmeter (c) switch (d) wire
25. 25.True or false: triangle, bar and arrows is the symbol for a capacitor. (a) False (b) True
26. 26.True or false: triangle, bar and arrows is the symbol for a cell. (a) False (b) True
27. 27.True or false: a circle with A inside is the symbol for a capacitor. (a) False (b) True
28. 28.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
29. 29.Which drawing is the symbol for a battery? (a) two or more cell symbols (b) triangle, bar and arrows (c) a plain rectangle (d) a line lifted at a gap
30. 30.Which drawing is the symbol for a diode? (a) triangle against a bar (b) a straight line (c) a plain rectangle (d) a long and a short line
31. 31.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) diode (b) ammeter (c) capacitor (d) battery
32. 32.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
33. 33.True or false: many long-short pairs is the symbol for a bulb. (a) False (b) True
34. 34.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) two equal parallel lines (c) a circle with a cross (d) a line lifted at a gap
35. 35.Which drawing is the symbol for a cell? (a) a long and a short line (b) a circle with a cross (c) a line lifted at a gap (d) a circle with A inside
36. 36.Which drawing is the symbol for a battery? (a) one tall, one short bar (b) many long-short pairs (c) a circle with M inside (d) two equal parallel lines
37. 37.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) cell (b) diode (c) LED (d) ammeter
38. 38.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
39. 39.True or false: a circle with A inside is the symbol for a wire. (a) True (b) False
40. 40.Which drawing is the symbol for an LED? (a) triangle against a bar (b) a circle with M inside (c) triangle, bar and arrows (d) two equal parallel lines

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