Electronics Worksheet: Circuit Symbols

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

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