Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 755 · 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 small empty box is the symbol for a resistor. (a) True (b) False
2. 2.True or false: a circle with A inside is the symbol for an ammeter. (a) True (b) False
3. 3.Which drawing is the symbol for a diode? (a) two equal parallel lines (b) triangle against a bar (c) a straight line (d) a circle with V inside
4. 4.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
5. 5.Which drawing is the symbol for an LED? (a) triangle, bar and arrows (b) a circle with an X in it (c) a dot where wires meet (d) a circle with a cross
6. 6.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) switch (b) wire (c) bulb (d) ammeter
7. 7.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) little stars (c) straight lines (d) wavy lines
8. 8.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) ammeter (b) cell (c) battery (d) junction
9. 9.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) resistor (b) ammeter (c) capacitor (d) LED
10. 10.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) capacitor (b) cell (c) resistor (d) battery
11. 11.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
12. 12.True or false: a plain rectangle is the symbol for a junction. (a) False (b) True
13. 13.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) voltmeter (b) resistor (c) cell (d) LED
14. 14.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) switch (b) LED (c) capacitor (d) motor
15. 15.Which drawing is the symbol for a cell? (a) a circle with a cross (b) a long and a short line (c) a small empty box (d) two equal parallel lines
16. 16.Which drawing is the symbol for a resistor? (a) triangle against a bar (b) one tall, one short bar (c) a circle with an X in it (d) a plain rectangle
17. 17.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) quick and clear for all (c) symbols are heavier (d) to make it colourful
18. 18.True or false: triangle, bar and arrows is the symbol for a voltmeter. (a) True (b) False
19. 19.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) battery (b) cell (c) resistor (d) bulb
20. 20.True or false: a circle with M inside is the symbol for a resistor. (a) False (b) True
21. 21.True or false: a circle with a cross is the symbol for a wire. (a) True (b) False
22. 22.Which drawing is the symbol for a bulb? (a) a plain rectangle (b) a circle with a cross (c) triangle, bar and arrows (d) a long and a short line
23. 23.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) the shorter line (c) both lines (d) neither line
24. 24.True or false: a long and a short line is the symbol for a switch. (a) True (b) False
25. 25.Which drawing is the symbol for a capacitor? (a) a straight line (b) triangle, bar and arrows (c) a circle with a cross (d) two equal parallel lines
26. 26.Which drawing is the symbol for a battery? (a) many long-short pairs (b) triangle, bar and arrows (c) a circle with V inside (d) two equal parallel lines
27. 27.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
28. 28.Which drawing is the symbol for a motor? (a) a circle with M inside (b) one tall, one short bar (c) two or more cell symbols (d) two equal parallel lines
29. 29.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) bulb (b) cell (c) diode (d) LED
30. 30.True or false: a line lifted at a gap is the symbol for a bulb. (a) True (b) False
31. 31.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) battery (b) capacitor (c) junction (d) LED
32. 32.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
33. 33.Which drawing is the symbol for an ammeter? (a) a circle with V inside (b) a plain rectangle (c) a circle with A inside (d) a circle with an X in it
34. 34.Which drawing is the symbol for a voltmeter? (a) two equal parallel lines (b) a circle with V inside (c) one tall, one short bar (d) a circle with a cross
35. 35.Which drawing is the symbol for a junction? (a) triangle against a bar (b) a straight line (c) a dot where wires meet (d) a circle with M inside
36. 36.True or false: a line lifted at a gap is the symbol for an ammeter. (a) True (b) False
37. 37.True or false: a circle with a cross is the symbol for a voltmeter. (a) False (b) True
38. 38.True or false: a plain rectangle is the symbol for a motor. (a) False (b) True
39. 39.True or false: a circle with A inside is the symbol for a junction. (a) False (b) True
40. 40.Which drawing is the symbol for a cell? (a) two or more cell symbols (b) one tall, one short bar (c) a line lifted at a gap (d) a circle with a cross

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