Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 623 · 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 a cross is the symbol for a battery. (a) True (b) False
2. 2.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) bulb (b) battery (c) cell (d) capacitor
3. 3.Which drawing is the symbol for a cell? (a) a plain rectangle (b) a circle with a cross (c) two or more cell symbols (d) one tall, one short bar
4. 4.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) dotted circles (c) straight lines (d) little stars
5. 5.Which drawing is the symbol for a wire? (a) a circle with V inside (b) a long and a short line (c) a straight line (d) a plain rectangle
6. 6.Which drawing is the symbol for a resistor? (a) a long and a short line (b) a circle with a cross (c) a small empty box (d) triangle, bar and arrows
7. 7.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) capacitor (b) resistor (c) cell (d) switch
8. 8.Which drawing is the symbol for an LED? (a) triangle, bar and arrows (b) a circle with a cross (c) one tall, one short bar (d) a line lifted at a gap
9. 9.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) a dot where wires meet (c) a small empty box (d) a long and a short line
10. 10.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) cell (b) resistor (c) switch (d) battery
11. 11.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) the shorter line (c) both lines (d) neither line
12. 12.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) cell (b) capacitor (c) battery (d) switch
13. 13.True or false: two or more cell symbols is the symbol for a cell. (a) True (b) False
14. 14.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) triangle, bar and arrows (c) two or more cell symbols (d) a small empty box
15. 15.Which drawing is the symbol for a bulb? (a) triangle against a bar (b) two or more cell symbols (c) a circle with a cross (d) a circle with M inside
16. 16.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
17. 17.Which drawing is the symbol for a junction? (a) a dot where wires meet (b) a circle with an X in it (c) two or more cell symbols (d) two equal parallel lines
18. 18.Which drawing is the symbol for a bulb? (a) a long and a short line (b) many long-short pairs (c) a circle with M inside (d) a circle with an X in it
19. 19.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) junction (b) battery (c) ammeter (d) diode
20. 20.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) capacitor (b) switch (c) resistor (d) bulb
21. 21.True or false: a circle with a cross is the symbol for a diode. (a) False (b) True
22. 22.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) symbols are heavier (c) quick and clear for all (d) to make it colourful
23. 23.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) bulb (b) wire (c) battery (d) switch
24. 24.True or false: a circle with A inside is the symbol for a voltmeter. (a) False (b) True
25. 25.True or false: a line lifted at a gap is the symbol for a motor. (a) False (b) True
26. 26.True or false: a plain rectangle is the symbol for a switch. (a) True (b) False
27. 27.Which drawing is the symbol for a battery? (a) many long-short pairs (b) one tall, one short bar (c) a small empty box (d) a circle with M inside
28. 28.True or false: a circle with an X in it is the symbol for a motor. (a) False (b) True
29. 29.Which drawing is the symbol for a battery? (a) a circle with M inside (b) two or more cell symbols (c) a circle with V inside (d) a small empty box
30. 30.True or false: a long and a short line is the symbol for a wire. (a) False (b) True
31. 31.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) motor (b) bulb (c) cell (d) LED
32. 32.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) resistor (b) LED (c) motor (d) cell
33. 33.Which drawing is the symbol for an ammeter? (a) triangle, bar and arrows (b) a circle with a cross (c) a plain rectangle (d) a circle with A inside
34. 34.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
35. 35.True or false: a straight line is the symbol for a wire. (a) True (b) False
36. 36.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) a circle with an X in it (c) many long-short pairs (d) a dot where wires meet
37. 37.True or false: a circle with M inside is the symbol for a wire. (a) True (b) False
38. 38.Which drawing is the symbol for a diode? (a) triangle against a bar (b) a long and a short line (c) many long-short pairs (d) a circle with a cross
39. 39.Which drawing is the symbol for a motor? (a) a circle with M inside (b) triangle against a bar (c) a small empty box (d) a straight line
40. 40.True or false: a circle with A inside is the symbol for a motor. (a) False (b) True

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