Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 574 · 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.True or false: a plain rectangle is the symbol for a diode. (a) False (b) True
2. 2.True or false: triangle against a bar is the symbol for a diode. (a) True (b) False
3. 3.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) resistor (b) bulb (c) battery (d) motor
4. 4.True or false: many long-short pairs is the symbol for a switch. (a) False (b) True
5. 5.Which drawing is the symbol for a bulb? (a) two or more cell symbols (b) a plain rectangle (c) a circle with an X in it (d) a straight line
6. 6.Which drawing is the symbol for a diode? (a) triangle, bar and arrows (b) triangle against a bar (c) many long-short pairs (d) a long and a short line
7. 7.Which drawing is the symbol for a battery? (a) many long-short pairs (b) two equal parallel lines (c) a circle with M inside (d) triangle against a bar
8. 8.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) wire (b) voltmeter (c) capacitor (d) battery
9. 9.True or false: a straight line is the symbol for a wire. (a) True (b) False
10. 10.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) switch (b) capacitor (c) bulb (d) motor
11. 11.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) LED (b) resistor (c) junction (d) bulb
12. 12.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) ammeter (b) cell (c) resistor (d) voltmeter
13. 13.✏️ In a circuit diagram, which part is drawn as a straight line? (a) battery (b) LED (c) cell (d) wire
14. 14.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) a small empty box (c) a plain rectangle (d) triangle against a bar
15. 15.Which drawing is the symbol for a voltmeter? (a) two equal parallel lines (b) a circle with V inside (c) triangle, bar and arrows (d) a circle with M inside
16. 16.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) the longer line (c) neither line (d) both lines
17. 17.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) capacitor (b) switch (c) cell (d) resistor
18. 18.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) to make it colourful (c) symbols are heavier (d) to hide the circuit
19. 19.True or false: two or more cell symbols is the symbol for a cell. (a) True (b) False
20. 20.True or false: a plain rectangle is the symbol for a bulb. (a) False (b) True
21. 21.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) ammeter (b) battery (c) resistor (d) bulb
22. 22.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) LED (b) battery (c) capacitor (d) switch
23. 23.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) bulb (b) battery (c) voltmeter (d) capacitor
24. 24.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) straight lines (c) wavy lines (d) dotted circles
25. 25.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) cell (b) switch (c) junction (d) diode
26. 26.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
27. 27.Which drawing is the symbol for an ammeter? (a) a dot where wires meet (b) triangle, bar and arrows (c) a long and a short line (d) a circle with A inside
28. 28.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
29. 29.Which drawing is the symbol for a resistor? (a) a plain rectangle (b) a circle with V inside (c) a line lifted at a gap (d) a circle with A inside
30. 30.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) a long and a short line (c) a small empty box (d) a circle with A inside
31. 31.True or false: a circle with a cross is the symbol for a resistor. (a) False (b) True
32. 32.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) voltmeter (b) ammeter (c) LED (d) battery
33. 33.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
34. 34.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
35. 35.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
36. 36.Which drawing is the symbol for an LED? (a) a line lifted at a gap (b) triangle, bar and arrows (c) one tall, one short bar (d) triangle against a bar
37. 37.True or false: a plain rectangle is the symbol for a cell. (a) False (b) True
38. 38.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) motor (b) switch (c) diode (d) junction
39. 39.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
40. 40.True or false: triangle against a bar is the symbol for a resistor. (a) True (b) False

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