Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 969 · 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, wires are usually drawn as … (a) straight lines (b) little stars (c) wavy lines (d) dotted circles
2. 2.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) quick and clear for all (c) symbols are heavier (d) to hide the circuit
3. 3.True or false: a dot where wires meet is the symbol for a capacitor. (a) True (b) False
4. 4.True or false: a straight line is the symbol for a wire. (a) False (b) True
5. 5.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) cell (b) ammeter (c) diode (d) junction
6. 6.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) bulb (b) motor (c) wire (d) ammeter
7. 7.True or false: a long and a short line is the symbol for an LED. (a) True (b) False
8. 8.Which drawing is the symbol for a battery? (a) a dot where wires meet (b) a circle with A inside (c) triangle, bar and arrows (d) many long-short pairs
9. 9.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
10. 10.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) capacitor (b) wire (c) cell (d) motor
11. 11.Which drawing is the symbol for a capacitor? (a) a circle with a cross (b) a long and a short line (c) two equal parallel lines (d) a circle with M inside
12. 12.True or false: a circle with a cross is the symbol for a motor. (a) False (b) True
13. 13.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) the shorter line (c) both lines (d) the longer line
14. 14.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) wire (b) LED (c) battery (d) cell
15. 15.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) battery (b) ammeter (c) resistor (d) diode
16. 16.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
17. 17.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
18. 18.True or false: triangle, bar and arrows is the symbol for a battery. (a) True (b) False
19. 19.✏️ In a circuit diagram, which part is drawn as a straight line? (a) ammeter (b) LED (c) wire (d) switch
20. 20.True or false: a dot where wires meet is the symbol for a voltmeter. (a) True (b) False
21. 21.True or false: a straight line is the symbol for a motor. (a) False (b) True
22. 22.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) ammeter (b) cell (c) capacitor (d) bulb
23. 23.Which drawing is the symbol for a battery? (a) a circle with M inside (b) a circle with A inside (c) two or more cell symbols (d) a circle with V inside
24. 24.True or false: a circle with A inside is the symbol for a diode. (a) True (b) False
25. 25.True or false: a long and a short line is the symbol for an ammeter. (a) True (b) False
26. 26.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
27. 27.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) bulb (b) cell (c) motor (d) switch
28. 28.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) ammeter (b) switch (c) cell (d) junction
29. 29.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) cell (b) voltmeter (c) capacitor (d) switch
30. 30.Which drawing is the symbol for a motor? (a) a circle with M inside (b) a straight line (c) a circle with a cross (d) a circle with A inside
31. 31.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) voltmeter (b) bulb (c) resistor (d) battery
32. 32.Which drawing is the symbol for a wire? (a) one tall, one short bar (b) a long and a short line (c) a straight line (d) a circle with an X in it
33. 33.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
34. 34.Which drawing is the symbol for a diode? (a) a circle with A inside (b) two or more cell symbols (c) triangle against a bar (d) many long-short pairs
35. 35.Which drawing is the symbol for a switch? (a) a plain rectangle (b) a line lifted at a gap (c) one tall, one short bar (d) a circle with M inside
36. 36.Which drawing is the symbol for a resistor? (a) a plain rectangle (b) a dot where wires meet (c) a line lifted at a gap (d) a straight line
37. 37.True or false: a plain rectangle is the symbol for a diode. (a) True (b) False
38. 38.Which drawing is the symbol for a bulb? (a) two equal parallel lines (b) a circle with a cross (c) triangle, bar and arrows (d) one tall, one short bar
39. 39.True or false: a line lifted at a gap is the symbol for a cell. (a) True (b) False
40. 40.Which drawing is the symbol for a voltmeter? (a) a circle with an X in it (b) a line lifted at a gap (c) a dot where wires meet (d) a circle with V inside

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