Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 785 · 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 line lifted at a gap (b) a circle with an X in it (c) many long-short pairs (d) two or more cell symbols
2. 2.Which drawing is the symbol for a bulb? (a) two equal parallel lines (b) a straight line (c) a circle with a cross (d) triangle, bar and arrows
3. 3.Which drawing is the symbol for a wire? (a) a plain rectangle (b) a straight line (c) two or more cell symbols (d) one tall, one short bar
4. 4.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) triangle against a bar (c) two or more cell symbols (d) a dot where wires meet
5. 5.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) voltmeter (b) LED (c) ammeter (d) capacitor
6. 6.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) resistor (b) ammeter (c) junction (d) capacitor
7. 7.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) neither line (c) both lines (d) the longer line
8. 8.True or false: a circle with a cross is the symbol for a cell. (a) False (b) True
9. 9.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) straight lines (c) little stars (d) wavy lines
10. 10.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) switch (b) battery (c) bulb (d) voltmeter
11. 11.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) cell (b) LED (c) motor (d) junction
12. 12.True or false: triangle, bar and arrows is the symbol for a junction. (a) True (b) False
13. 13.True or false: two equal parallel lines is the symbol for a capacitor. (a) True (b) False
14. 14.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) resistor (b) LED (c) diode (d) bulb
15. 15.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
16. 16.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) resistor (b) bulb (c) capacitor (d) cell
17. 17.Which drawing is the symbol for a resistor? (a) a circle with a cross (b) a straight line (c) many long-short pairs (d) a plain rectangle
18. 18.True or false: triangle against a bar is the symbol for a diode. (a) True (b) False
19. 19.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) LED (b) capacitor (c) switch (d) resistor
20. 20.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) to hide the circuit (c) to make it colourful (d) symbols are heavier
21. 21.Which drawing is the symbol for a motor? (a) a line lifted at a gap (b) a circle with a cross (c) two or more cell symbols (d) a circle with M inside
22. 22.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) bulb (b) ammeter (c) battery (d) motor
23. 23.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) junction (b) cell (c) ammeter (d) capacitor
24. 24.True or false: a dot where wires meet is the symbol for a capacitor. (a) False (b) True
25. 25.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
26. 26.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
27. 27.Which drawing is the symbol for a diode? (a) a straight line (b) a dot where wires meet (c) triangle against a bar (d) a circle with an X in it
28. 28.True or false: two or more cell symbols is the symbol for a cell. (a) True (b) False
29. 29.Which drawing is the symbol for a resistor? (a) two or more cell symbols (b) a circle with a cross (c) a small empty box (d) a circle with A inside
30. 30.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) LED (b) resistor (c) switch (d) bulb
31. 31.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
32. 32.Which drawing is the symbol for a cell? (a) a straight line (b) a long and a short line (c) a circle with an X in it (d) many long-short pairs
33. 33.True or false: a straight line is the symbol for a wire. (a) False (b) True
34. 34.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) a circle with a cross (c) a circle with M inside (d) a dot where wires meet
35. 35.✏️ In a circuit diagram, which part is drawn as a straight line? (a) bulb (b) battery (c) resistor (d) wire
36. 36.True or false: one tall, one short bar is the symbol for an ammeter. (a) False (b) True
37. 37.True or false: a line lifted at a gap is the symbol for a wire. (a) False (b) True
38. 38.Which drawing is the symbol for a bulb? (a) triangle, bar and arrows (b) two or more cell symbols (c) a long and a short line (d) a circle with an X in it
39. 39.True or false: a line lifted at a gap is the symbol for a bulb. (a) False (b) True
40. 40.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) capacitor (b) junction (c) wire (d) ammeter

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