Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 164 · 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 an ammeter? (a) a circle with V inside (b) a small empty box (c) a circle with a cross (d) a circle with A inside
2. 2.True or false: a straight line is the symbol for a wire. (a) False (b) True
3. 3.Which drawing is the symbol for a capacitor? (a) a small empty box (b) two equal parallel lines (c) a long and a short line (d) many long-short pairs
4. 4.True or false: a circle with a cross is the symbol for a resistor. (a) True (b) False
5. 5.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) little stars (c) straight lines (d) wavy lines
6. 6.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) the longer line (c) both lines (d) neither line
7. 7.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) ammeter (b) bulb (c) switch (d) resistor
8. 8.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
9. 9.True or false: a circle with an X in it is the symbol for a cell. (a) True (b) False
10. 10.Which drawing is the symbol for a cell? (a) a long and a short line (b) triangle, bar and arrows (c) a circle with V inside (d) a plain rectangle
11. 11.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
12. 12.Which drawing is the symbol for an LED? (a) triangle against a bar (b) two or more cell symbols (c) triangle, bar and arrows (d) one tall, one short bar
13. 13.✏️ 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
14. 14.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) ammeter (b) bulb (c) cell (d) capacitor
15. 15.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) cell (b) battery (c) resistor (d) bulb
16. 16.Which drawing is the symbol for a wire? (a) a plain rectangle (b) a circle with V inside (c) a circle with an X in it (d) a straight line
17. 17.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) switch (b) junction (c) wire (d) voltmeter
18. 18.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) battery (b) switch (c) bulb (d) LED
19. 19.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
20. 20.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) ammeter (c) cell (d) battery
21. 21.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) junction (c) resistor (d) voltmeter
22. 22.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) junction (b) resistor (c) switch (d) bulb
23. 23.Which drawing is the symbol for a cell? (a) one tall, one short bar (b) a circle with V inside (c) triangle, bar and arrows (d) a dot where wires meet
24. 24.True or false: a circle with a cross is the symbol for a junction. (a) False (b) True
25. 25.Which drawing is the symbol for a diode? (a) triangle against a bar (b) many long-short pairs (c) a straight line (d) a small empty box
26. 26.True or false: a plain rectangle is the symbol for a cell. (a) True (b) False
27. 27.✏️ In a circuit diagram, which part is drawn as a straight line? (a) capacitor (b) switch (c) junction (d) wire
28. 28.True or false: a dot where wires meet is the symbol for a junction. (a) True (b) False
29. 29.Which drawing is the symbol for a junction? (a) a circle with V inside (b) a dot where wires meet (c) many long-short pairs (d) a plain rectangle
30. 30.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
31. 31.True or false: two or more cell symbols is the symbol for a switch. (a) False (b) True
32. 32.Which drawing is the symbol for a switch? (a) a circle with an X in it (b) a line lifted at a gap (c) a plain rectangle (d) a long and a short line
33. 33.True or false: a dot where wires meet is the symbol for a resistor. (a) False (b) True
34. 34.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
35. 35.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
36. 36.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
37. 37.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
38. 38.Which drawing is the symbol for a resistor? (a) two or more cell symbols (b) triangle against a bar (c) a circle with A inside (d) a small empty box
39. 39.Which drawing is the symbol for a bulb? (a) one tall, one short bar (b) a circle with a cross (c) two or more cell symbols (d) a long and a short line
40. 40.True or false: a small empty box is the symbol for a cell. (a) False (b) True

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