Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 945 · 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 bulb. (a) True (b) False
2. 2.True or false: a circle with M inside is the symbol for a motor. (a) True (b) False
3. 3.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) LED (c) motor (d) switch
4. 4.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) triangle against a bar (c) a plain rectangle (d) one tall, one short bar
5. 5.Which drawing is the symbol for a junction? (a) triangle against a bar (b) a dot where wires meet (c) a long and a short line (d) two or more cell symbols
6. 6.Which drawing is the symbol for a cell? (a) a long and a short line (b) a circle with A inside (c) a small empty box (d) a dot where wires meet
7. 7.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) dotted circles (c) little stars (d) wavy lines
8. 8.True or false: two or more cell symbols is the symbol for a diode. (a) True (b) False
9. 9.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) motor (b) LED (c) bulb (d) battery
10. 10.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) voltmeter (b) junction (c) resistor (d) capacitor
11. 11.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) quick and clear for all (c) to hide the circuit (d) symbols are heavier
12. 12.Which drawing is the symbol for a diode? (a) a plain rectangle (b) a line lifted at a gap (c) triangle against a bar (d) a circle with V inside
13. 13.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) both lines (c) neither line (d) the longer line
14. 14.Which drawing is the symbol for a battery? (a) many long-short pairs (b) one tall, one short bar (c) a circle with M inside (d) a line lifted at a gap
15. 15.True or false: a plain rectangle is the symbol for an ammeter. (a) True (b) False
16. 16.True or false: triangle against a bar is the symbol for a capacitor. (a) False (b) True
17. 17.Which drawing is the symbol for a capacitor? (a) a plain rectangle (b) many long-short pairs (c) triangle against a bar (d) two equal parallel lines
18. 18.True or false: two equal parallel lines is the symbol for a diode. (a) True (b) False
19. 19.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) voltmeter (b) switch (c) LED (d) bulb
20. 20.True or false: triangle against a bar is the symbol for a cell. (a) True (b) False
21. 21.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) switch (c) resistor (d) diode
22. 22.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) switch (b) voltmeter (c) motor (d) diode
23. 23.True or false: a circle with a cross is the symbol for an ammeter. (a) True (b) False
24. 24.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) cell (b) switch (c) motor (d) battery
25. 25.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) triangle against a bar (c) a plain rectangle (d) many long-short pairs
26. 26.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) motor (b) resistor (c) wire (d) capacitor
27. 27.True or false: two or more cell symbols is the symbol for a motor. (a) False (b) True
28. 28.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) battery (b) cell (c) bulb (d) resistor
29. 29.True or false: a dot where wires meet is the symbol for an ammeter. (a) False (b) True
30. 30.True or false: two equal parallel lines is the symbol for a motor. (a) False (b) True
31. 31.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
32. 32.Which drawing is the symbol for a wire? (a) a dot where wires meet (b) triangle, bar and arrows (c) a small empty box (d) a straight line
33. 33.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
34. 34.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
35. 35.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) bulb (c) voltmeter (d) LED
36. 36.Which drawing is the symbol for a bulb? (a) many long-short pairs (b) one tall, one short bar (c) a plain rectangle (d) a circle with a cross
37. 37.Which drawing is the symbol for a bulb? (a) a circle with an X in it (b) a straight line (c) two equal parallel lines (d) a long and a short line
38. 38.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) voltmeter (b) diode (c) battery (d) cell
39. 39.True or false: a circle with A inside is the symbol for a diode. (a) True (b) False
40. 40.True or false: a circle with A inside is the symbol for a motor. (a) False (b) True

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