Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 107 · 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 cell. (a) False (b) True
2. 2.Which drawing is the symbol for a voltmeter? (a) two or more cell symbols (b) a circle with M inside (c) a circle with V inside (d) a straight line
3. 3.Which drawing is the symbol for a switch? (a) a circle with M inside (b) a line lifted at a gap (c) a dot where wires meet (d) a small empty box
4. 4.Which drawing is the symbol for a bulb? (a) a circle with V inside (b) a circle with a cross (c) a plain rectangle (d) two equal parallel lines
5. 5.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) battery (b) junction (c) diode (d) resistor
6. 6.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) neither line (c) both lines (d) the longer line
7. 7.True or false: a line lifted at a gap is the symbol for a battery. (a) False (b) True
8. 8.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) capacitor (b) battery (c) voltmeter (d) wire
9. 9.Which drawing is the symbol for a resistor? (a) a circle with a cross (b) a small empty box (c) a circle with an X in it (d) two equal parallel lines
10. 10.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) motor (b) ammeter (c) wire (d) capacitor
11. 11.True or false: a circle with V inside is the symbol for a junction. (a) True (b) False
12. 12.True or false: a circle with V inside is the symbol for a bulb. (a) True (b) False
13. 13.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) wavy lines (c) dotted circles (d) straight lines
14. 14.Which drawing is the symbol for a wire? (a) a straight line (b) a circle with M inside (c) triangle against a bar (d) a long and a short line
15. 15.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) cell (b) motor (c) switch (d) wire
16. 16.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) switch (b) resistor (c) junction (d) cell
17. 17.✏️ 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
18. 18.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) cell (b) switch (c) resistor (d) battery
19. 19.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) switch (b) battery (c) ammeter (d) motor
20. 20.Which drawing is the symbol for a junction? (a) a dot where wires meet (b) a long and a short line (c) two equal parallel lines (d) two or more cell symbols
21. 21.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
22. 22.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) cell (b) voltmeter (c) switch (d) bulb
23. 23.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
24. 24.True or false: a circle with M inside is the symbol for a motor. (a) True (b) False
25. 25.Which drawing is the symbol for a capacitor? (a) a long and a short line (b) many long-short pairs (c) a straight line (d) two equal parallel lines
26. 26.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) cell (b) LED (c) resistor (d) bulb
27. 27.Which drawing is the symbol for a resistor? (a) a circle with a cross (b) many long-short pairs (c) a plain rectangle (d) two equal parallel lines
28. 28.Which drawing is the symbol for a battery? (a) many long-short pairs (b) a long and a short line (c) a circle with a cross (d) a circle with M inside
29. 29.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) motor (b) bulb (c) resistor (d) cell
30. 30.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
31. 31.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
32. 32.Which drawing is the symbol for a cell? (a) triangle, bar and arrows (b) a long and a short line (c) triangle against a bar (d) two or more cell symbols
33. 33.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) battery (c) LED (d) voltmeter
34. 34.Which drawing is the symbol for a diode? (a) a circle with A inside (b) triangle against a bar (c) one tall, one short bar (d) a circle with a cross
35. 35.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) cell (b) LED (c) diode (d) voltmeter
36. 36.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) LED (c) junction (d) switch
37. 37.Which drawing is the symbol for an LED? (a) many long-short pairs (b) a line lifted at a gap (c) triangle, bar and arrows (d) one tall, one short bar
38. 38.True or false: a plain rectangle is the symbol for an ammeter. (a) False (b) True
39. 39.True or false: a straight line is the symbol for a bulb. (a) False (b) True
40. 40.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) motor (b) wire (c) switch (d) LED

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