Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 929 · 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 circle with V inside is the symbol for a capacitor. (a) True (b) False
2. 2.True or false: two or more cell symbols is the symbol for a capacitor. (a) True (b) False
3. 3.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) diode (b) motor (c) LED (d) capacitor
4. 4.Which drawing is the symbol for a bulb? (a) a plain rectangle (b) two equal parallel lines (c) a circle with an X in it (d) a line lifted at a gap
5. 5.True or false: a long and a short line is the symbol for a resistor. (a) False (b) True
6. 6.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) capacitor (b) resistor (c) cell (d) voltmeter
7. 7.True or false: a circle with V inside is the symbol for a voltmeter. (a) True (b) False
8. 8.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) both lines (c) the longer line (d) neither line
9. 9.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) to make it colourful (c) to hide the circuit (d) quick and clear for all
10. 10.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) ammeter (b) battery (c) junction (d) bulb
11. 11.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) resistor (b) bulb (c) battery (d) cell
12. 12.Which drawing is the symbol for an LED? (a) a circle with M inside (b) triangle, bar and arrows (c) triangle against a bar (d) two or more cell symbols
13. 13.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) dotted circles (c) wavy lines (d) little stars
14. 14.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) bulb (b) wire (c) resistor (d) switch
15. 15.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) LED (b) switch (c) bulb (d) diode
16. 16.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) diode (b) junction (c) cell (d) resistor
17. 17.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) junction (c) voltmeter (d) ammeter
18. 18.Which drawing is the symbol for a switch? (a) a circle with V inside (b) a line lifted at a gap (c) a dot where wires meet (d) one tall, one short bar
19. 19.True or false: a dot where wires meet is the symbol for an LED. (a) True (b) False
20. 20.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) a long and a short line (c) a dot where wires meet (d) one tall, one short bar
21. 21.True or false: triangle, bar and arrows is the symbol for a motor. (a) True (b) False
22. 22.Which drawing is the symbol for a cell? (a) a long and a short line (b) a circle with A inside (c) a line lifted at a gap (d) two equal parallel lines
23. 23.Which drawing is the symbol for a junction? (a) a dot where wires meet (b) many long-short pairs (c) a circle with V inside (d) a small empty box
24. 24.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
25. 25.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
26. 26.True or false: a dot where wires meet is the symbol for a junction. (a) True (b) False
27. 27.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) many long-short pairs (c) triangle against a bar (d) a circle with A inside
28. 28.True or false: many long-short pairs is the symbol for a wire. (a) True (b) False
29. 29.Which drawing is the symbol for a resistor? (a) two or more cell symbols (b) a circle with a cross (c) a small empty box (d) two equal parallel lines
30. 30.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) cell (b) ammeter (c) switch (d) diode
31. 31.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) diode (b) resistor (c) ammeter (d) battery
32. 32.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
33. 33.Which drawing is the symbol for a motor? (a) a dot where wires meet (b) a circle with M inside (c) a circle with an X in it (d) one tall, one short bar
34. 34.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) bulb (b) junction (c) capacitor (d) motor
35. 35.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) resistor (c) cell (d) motor
36. 36.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
37. 37.True or false: a circle with a cross is the symbol for an LED. (a) False (b) True
38. 38.Which drawing is the symbol for a diode? (a) a dot where wires meet (b) a circle with a cross (c) triangle against a bar (d) two equal parallel lines
39. 39.True or false: a circle with an X in it is the symbol for a resistor. (a) True (b) False
40. 40.True or false: a circle with M inside is the symbol for a battery. (a) True (b) False

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