Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 904 · 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.Which drawing is the symbol for a diode? (a) a circle with a cross (b) a circle with an X in it (c) two or more cell symbols (d) triangle against a bar
2. 2.True or false: a circle with a cross is the symbol for a resistor. (a) True (b) False
3. 3.True or false: a long and a short line is the symbol for a switch. (a) True (b) False
4. 4.Which drawing is the symbol for a bulb? (a) two equal parallel lines (b) a circle with a cross (c) a circle with A inside (d) a circle with V inside
5. 5.Which drawing is the symbol for a switch? (a) two or more cell symbols (b) a circle with a cross (c) a straight line (d) a line lifted at a gap
6. 6.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) resistor (b) battery (c) bulb (d) capacitor
7. 7.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
8. 8.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) LED (b) battery (c) diode (d) bulb
9. 9.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
10. 10.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
11. 11.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) resistor (c) battery (d) switch
12. 12.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) resistor (b) motor (c) diode (d) ammeter
13. 13.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) ammeter (b) resistor (c) diode (d) voltmeter
14. 14.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) little stars (c) straight lines (d) dotted circles
15. 15.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
16. 16.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) ammeter (b) resistor (c) junction (d) bulb
17. 17.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) battery (b) LED (c) capacitor (d) resistor
18. 18.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) wire (b) battery (c) switch (d) capacitor
19. 19.Which drawing is the symbol for a capacitor? (a) one tall, one short bar (b) a circle with M inside (c) a line lifted at a gap (d) two equal parallel lines
20. 20.Which drawing is the symbol for a junction? (a) a dot where wires meet (b) a straight line (c) a long and a short line (d) two or more cell symbols
21. 21.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) quick and clear for all (c) to hide the circuit (d) symbols are heavier
22. 22.Which drawing is the symbol for a resistor? (a) a straight line (b) a circle with M inside (c) a circle with V inside (d) a plain rectangle
23. 23.True or false: two or more cell symbols is the symbol for a diode. (a) False (b) True
24. 24.True or false: two equal parallel lines is the symbol for a switch. (a) False (b) True
25. 25.Which drawing is the symbol for a cell? (a) a long and a short line (b) two equal parallel lines (c) many long-short pairs (d) a small empty box
26. 26.Which drawing is the symbol for an LED? (a) triangle, bar and arrows (b) a circle with a cross (c) two equal parallel lines (d) many long-short pairs
27. 27.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
28. 28.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
29. 29.Which drawing is the symbol for an ammeter? (a) a dot where wires meet (b) two or more cell symbols (c) a circle with A inside (d) two equal parallel lines
30. 30.Which drawing is the symbol for a wire? (a) two or more cell symbols (b) a circle with a cross (c) a straight line (d) a circle with A inside
31. 31.Which drawing is the symbol for a cell? (a) a circle with a cross (b) triangle, bar and arrows (c) a line lifted at a gap (d) one tall, one short bar
32. 32.True or false: a circle with a cross is the symbol for a motor. (a) True (b) False
33. 33.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) LED (b) cell (c) wire (d) motor
34. 34.True or false: a straight line is the symbol for a wire. (a) False (b) True
35. 35.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
36. 36.True or false: two or more cell symbols is the symbol for a wire. (a) False (b) True
37. 37.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
38. 38.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) wire (b) voltmeter (c) bulb (d) junction
39. 39.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
40. 40.True or false: two or more cell symbols is the symbol for a capacitor. (a) True (b) False

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