Electronics Worksheet: Circuit Symbols

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

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