Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 500 · 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.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) wire (b) switch (c) resistor (d) bulb
2. 2.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) battery (b) switch (c) cell (d) bulb
3. 3.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
4. 4.True or false: a long and a short line is the symbol for an ammeter. (a) False (b) True
5. 5.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) junction (b) voltmeter (c) cell (d) bulb
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.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) battery (b) cell (c) resistor (d) capacitor
8. 8.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) bulb (c) resistor (d) battery
9. 9.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
10. 10.True or false: a circle with M inside is the symbol for a cell. (a) False (b) True
11. 11.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
12. 12.Which drawing is the symbol for a resistor? (a) a plain rectangle (b) a circle with M inside (c) a line lifted at a gap (d) a circle with V inside
13. 13.Which drawing is the symbol for a resistor? (a) a circle with V inside (b) two or more cell symbols (c) a small empty box (d) a line lifted at a gap
14. 14.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) little stars (c) wavy lines (d) dotted circles
15. 15.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) capacitor (b) battery (c) switch (d) voltmeter
16. 16.Which drawing is the symbol for a junction? (a) many long-short pairs (b) a circle with V inside (c) a circle with a cross (d) a dot where wires meet
17. 17.Which drawing is the symbol for a battery? (a) a long and a short line (b) two or more cell symbols (c) a straight line (d) two equal parallel lines
18. 18.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) LED (b) junction (c) ammeter (d) battery
19. 19.True or false: a circle with V inside is the symbol for a switch. (a) True (b) False
20. 20.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) symbols are heavier (c) quick and clear for all (d) to hide the circuit
21. 21.Which drawing is the symbol for a switch? (a) two equal parallel lines (b) a line lifted at a gap (c) one tall, one short bar (d) a circle with a cross
22. 22.True or false: triangle against a bar is the symbol for a resistor. (a) True (b) False
23. 23.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) voltmeter (b) bulb (c) LED (d) switch
24. 24.Which drawing is the symbol for a bulb? (a) a circle with an X in it (b) triangle, bar and arrows (c) a long and a short line (d) one tall, one short bar
25. 25.Which drawing is the symbol for a battery? (a) a circle with a cross (b) many long-short pairs (c) triangle, bar and arrows (d) a small empty box
26. 26.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) cell (b) capacitor (c) motor (d) bulb
27. 27.True or false: one tall, one short bar is the symbol for a switch. (a) False (b) True
28. 28.Which drawing is the symbol for a cell? (a) a circle with an X in it (b) one tall, one short bar (c) two equal parallel lines (d) triangle against a bar
29. 29.True or false: a dot where wires meet is the symbol for a junction. (a) True (b) False
30. 30.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) resistor (b) voltmeter (c) junction (d) diode
31. 31.True or false: a plain rectangle is the symbol for an LED. (a) True (b) False
32. 32.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) junction (b) voltmeter (c) motor (d) bulb
33. 33.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
34. 34.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) ammeter (b) LED (c) bulb (d) cell
35. 35.✏️ In a circuit diagram, which part is drawn as a straight line? (a) cell (b) voltmeter (c) wire (d) resistor
36. 36.True or false: a circle with a cross is the symbol for a resistor. (a) False (b) True
37. 37.True or false: a circle with V inside is the symbol for a cell. (a) False (b) True
38. 38.True or false: triangle, bar and arrows is the symbol for a bulb. (a) True (b) False
39. 39.Which drawing is the symbol for a diode? (a) two or more cell symbols (b) a circle with V inside (c) one tall, one short bar (d) triangle against a bar
40. 40.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) wire (b) battery (c) cell (d) motor

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