Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 232 · 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.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) symbols are heavier (c) to hide the circuit (d) to make it colourful
2. 2.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
3. 3.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
4. 4.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) voltmeter (b) capacitor (c) resistor (d) bulb
5. 5.True or false: a circle with an X in it is the symbol for a cell. (a) True (b) False
6. 6.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) battery (b) voltmeter (c) ammeter (d) resistor
7. 7.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) ammeter (b) battery (c) switch (d) cell
8. 8.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) cell (b) bulb (c) wire (d) diode
9. 9.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) dotted circles (c) wavy lines (d) little stars
10. 10.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) the shorter line (c) neither line (d) both lines
11. 11.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) cell (b) junction (c) switch (d) LED
12. 12.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) switch (c) cell (d) motor
13. 13.True or false: many long-short pairs is the symbol for an ammeter. (a) True (b) False
14. 14.True or false: a plain rectangle is the symbol for a capacitor. (a) True (b) False
15. 15.True or false: a long and a short line is the symbol for a wire. (a) True (b) False
16. 16.Which drawing is the symbol for a diode? (a) a circle with a cross (b) two or more cell symbols (c) triangle, bar and arrows (d) triangle against a bar
17. 17.Which drawing is the symbol for a motor? (a) two or more cell symbols (b) a circle with M inside (c) a circle with a cross (d) triangle against a bar
18. 18.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) switch (b) resistor (c) junction (d) battery
19. 19.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
20. 20.Which drawing is the symbol for a bulb? (a) a line lifted at a gap (b) a circle with an X in it (c) a long and a short line (d) many long-short pairs
21. 21.Which drawing is the symbol for a wire? (a) a circle with M inside (b) a circle with A inside (c) triangle, bar and arrows (d) a straight line
22. 22.True or false: a circle with A inside is the symbol for an ammeter. (a) True (b) False
23. 23.Which drawing is the symbol for an LED? (a) a small empty box (b) triangle against a bar (c) a long and a short line (d) triangle, bar and arrows
24. 24.True or false: a circle with M inside is the symbol for a capacitor. (a) True (b) False
25. 25.Which drawing is the symbol for a cell? (a) a circle with M inside (b) a circle with A inside (c) a straight line (d) a long and a short line
26. 26.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) resistor (b) ammeter (c) motor (d) LED
27. 27.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) triangle against a bar (c) a plain rectangle (d) a circle with V inside
28. 28.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) ammeter (b) bulb (c) switch (d) cell
29. 29.Which drawing is the symbol for an ammeter? (a) triangle, bar and arrows (b) a plain rectangle (c) a long and a short line (d) a circle with A inside
30. 30.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) junction (b) bulb (c) voltmeter (d) motor
31. 31.Which drawing is the symbol for a junction? (a) a small empty box (b) many long-short pairs (c) two or more cell symbols (d) a dot where wires meet
32. 32.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
33. 33.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
34. 34.Which drawing is the symbol for a cell? (a) triangle against a bar (b) one tall, one short bar (c) a circle with a cross (d) a circle with M inside
35. 35.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) voltmeter (b) battery (c) ammeter (d) bulb
36. 36.Which drawing is the symbol for a resistor? (a) a plain rectangle (b) one tall, one short bar (c) a circle with A inside (d) triangle against a bar
37. 37.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
38. 38.True or false: a small empty box is the symbol for an ammeter. (a) True (b) False
39. 39.True or false: a circle with M inside is the symbol for a diode. (a) True (b) False
40. 40.Which drawing is the symbol for a bulb? (a) a circle with a cross (b) one tall, one short bar (c) a circle with V inside (d) a small empty box

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