Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 677 · 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 triangle, bar and arrows? (a) bulb (b) ammeter (c) LED (d) cell
2. 2.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) the longer line (c) the shorter line (d) both lines
3. 3.True or false: a dot where wires meet is the symbol for a wire. (a) False (b) True
4. 4.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) switch (b) LED (c) bulb (d) capacitor
5. 5.Which drawing is the symbol for a bulb? (a) a line lifted at a gap (b) triangle against a bar (c) a circle with an X in it (d) a dot where wires meet
6. 6.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) to make it colourful (c) quick and clear for all (d) to hide the circuit
7. 7.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) capacitor (b) voltmeter (c) LED (d) cell
8. 8.Which drawing is the symbol for a battery? (a) a dot where wires meet (b) two or more cell symbols (c) triangle against a bar (d) a long and a short line
9. 9.Which drawing is the symbol for an ammeter? (a) a dot where wires meet (b) a circle with A inside (c) two equal parallel lines (d) triangle against a bar
10. 10.True or false: triangle against a bar is the symbol for an ammeter. (a) True (b) False
11. 11.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
12. 12.True or false: a straight line is the symbol for a wire. (a) True (b) False
13. 13.✏️ In a circuit diagram, which part is drawn as a straight line? (a) wire (b) voltmeter (c) ammeter (d) bulb
14. 14.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) voltmeter (b) junction (c) bulb (d) battery
15. 15.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
16. 16.Which drawing is the symbol for a resistor? (a) a long and a short line (b) a circle with A inside (c) a plain rectangle (d) a circle with M inside
17. 17.Which drawing is the symbol for a motor? (a) a line lifted at a gap (b) triangle, bar and arrows (c) a circle with M inside (d) a plain rectangle
18. 18.Which drawing is the symbol for a battery? (a) many long-short pairs (b) a small empty box (c) a plain rectangle (d) a straight line
19. 19.True or false: a circle with V inside is the symbol for a switch. (a) True (b) False
20. 20.Which drawing is the symbol for a capacitor? (a) a circle with an X in it (b) two equal parallel lines (c) a long and a short line (d) triangle against a bar
21. 21.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) switch (b) bulb (c) resistor (d) junction
22. 22.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) junction (b) wire (c) LED (d) diode
23. 23.Which drawing is the symbol for a cell? (a) a circle with M inside (b) triangle against a bar (c) one tall, one short bar (d) a small empty box
24. 24.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
25. 25.Which drawing is the symbol for a wire? (a) a straight line (b) two or more cell symbols (c) one tall, one short bar (d) a line lifted at a gap
26. 26.True or false: a straight line is the symbol for a voltmeter. (a) True (b) False
27. 27.Which drawing is the symbol for a bulb? (a) one tall, one short bar (b) a circle with V inside (c) a circle with a cross (d) many long-short pairs
28. 28.Which drawing is the symbol for a cell? (a) a dot where wires meet (b) many long-short pairs (c) a circle with an X in it (d) a long and a short line
29. 29.True or false: a circle with an X in it is the symbol for a battery. (a) True (b) False
30. 30.Which drawing is the symbol for a diode? (a) a circle with an X in it (b) triangle against a bar (c) a plain rectangle (d) one tall, one short bar
31. 31.Which drawing is the symbol for a junction? (a) a long and a short line (b) a plain rectangle (c) two or more cell symbols (d) a dot where wires meet
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 many long-short pairs? (a) cell (b) battery (c) bulb (d) resistor
34. 34.True or false: two or more cell symbols is the symbol for a cell. (a) False (b) True
35. 35.True or false: a small empty box is the symbol for a diode. (a) False (b) True
36. 36.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) little stars (c) dotted circles (d) straight lines
37. 37.True or false: a dot where wires meet is the symbol for a cell. (a) False (b) True
38. 38.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) switch (b) battery (c) wire (d) bulb
39. 39.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) triangle, bar and arrows (c) many long-short pairs (d) a long and a short line
40. 40.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False

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