Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 540 · 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.Which drawing is the symbol for a switch? (a) a circle with A inside (b) two equal parallel lines (c) a line lifted at a gap (d) one tall, one short bar
2. 2.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) cell (b) LED (c) diode (d) ammeter
3. 3.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) straight lines (c) wavy lines (d) little stars
4. 4.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) to hide the circuit (c) to make it colourful (d) quick and clear for all
5. 5.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
6. 6.True or false: one tall, one short bar is the symbol for a resistor. (a) True (b) False
7. 7.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) bulb (b) resistor (c) diode (d) ammeter
8. 8.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) diode (b) junction (c) battery (d) motor
9. 9.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
10. 10.Which drawing is the symbol for a battery? (a) a line lifted at a gap (b) a circle with a cross (c) a dot where wires meet (d) many long-short pairs
11. 11.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) motor (b) switch (c) ammeter (d) cell
12. 12.Which drawing is the symbol for a bulb? (a) a line lifted at a gap (b) a small empty box (c) a circle with a cross (d) two or more cell symbols
13. 13.True or false: a circle with V inside is the symbol for a cell. (a) True (b) False
14. 14.✏️ In a circuit diagram, which part is drawn as a straight line? (a) resistor (b) bulb (c) junction (d) wire
15. 15.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) LED (b) junction (c) switch (d) bulb
16. 16.Which drawing is the symbol for a capacitor? (a) a circle with A inside (b) a plain rectangle (c) a circle with a cross (d) two equal parallel lines
17. 17.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) neither line (c) both lines (d) the longer line
18. 18.True or false: many long-short pairs is the symbol for a cell. (a) False (b) True
19. 19.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) cell (b) junction (c) ammeter (d) resistor
20. 20.Which drawing is the symbol for a cell? (a) a long and a short line (b) triangle against a bar (c) a circle with a cross (d) a circle with A inside
21. 21.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) wire (b) junction (c) voltmeter (d) ammeter
22. 22.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
23. 23.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) motor (b) cell (c) junction (d) ammeter
24. 24.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
25. 25.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) voltmeter (b) battery (c) ammeter (d) cell
26. 26.Which drawing is the symbol for a bulb? (a) a dot where wires meet (b) a circle with M inside (c) two or more cell symbols (d) a circle with an X in it
27. 27.Which drawing is the symbol for a wire? (a) a small empty box (b) many long-short pairs (c) triangle, bar and arrows (d) a straight line
28. 28.Which drawing is the symbol for a diode? (a) a circle with M inside (b) a long and a short line (c) a circle with a cross (d) triangle against a bar
29. 29.True or false: a line lifted at a gap is the symbol for a resistor. (a) False (b) True
30. 30.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) resistor (b) battery (c) voltmeter (d) LED
31. 31.True or false: a dot where wires meet is the symbol for a resistor. (a) False (b) True
32. 32.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
33. 33.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) ammeter (b) diode (c) bulb (d) capacitor
34. 34.True or false: two equal parallel lines is the symbol for a switch. (a) True (b) False
35. 35.True or false: many long-short pairs is the symbol for a wire. (a) False (b) True
36. 36.Which drawing is the symbol for an ammeter? (a) triangle, bar and arrows (b) a plain rectangle (c) a circle with A inside (d) one tall, one short bar
37. 37.Which drawing is the symbol for a motor? (a) two or more cell symbols (b) a plain rectangle (c) a circle with M inside (d) a dot where wires meet
38. 38.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
39. 39.True or false: triangle, bar and arrows is the symbol for a diode. (a) False (b) True
40. 40.Which drawing is the symbol for a resistor? (a) a plain rectangle (b) a circle with a cross (c) triangle against a bar (d) a circle with V inside

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