Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 135 · 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) to make it colourful (c) symbols are heavier (d) to hide the circuit
2. 2.Which drawing is the symbol for an LED? (a) a dot where wires meet (b) a straight line (c) a plain rectangle (d) triangle, bar and arrows
3. 3.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) dotted circles (c) wavy lines (d) straight lines
4. 4.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) one tall, one short bar (c) two equal parallel lines (d) a circle with A inside
5. 5.Which drawing is the symbol for a voltmeter? (a) many long-short pairs (b) a circle with M inside (c) a circle with V inside (d) two equal parallel lines
6. 6.Which drawing is the symbol for an ammeter? (a) one tall, one short bar (b) two or more cell symbols (c) a circle with a cross (d) a circle with A inside
7. 7.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
8. 8.Which drawing is the symbol for a battery? (a) triangle, bar and arrows (b) a dot where wires meet (c) two or more cell symbols (d) a circle with M inside
9. 9.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
10. 10.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) motor (c) diode (d) junction
11. 11.True or false: a circle with A inside is the symbol for an ammeter. (a) True (b) False
12. 12.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
13. 13.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
14. 14.Which drawing is the symbol for a capacitor? (a) a circle with A inside (b) a line lifted at a gap (c) a small empty box (d) two equal parallel lines
15. 15.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
16. 16.Which drawing is the symbol for a cell? (a) a small empty box (b) two equal parallel lines (c) one tall, one short bar (d) a dot where wires meet
17. 17.Which drawing is the symbol for a diode? (a) triangle against a bar (b) a long and a short line (c) a plain rectangle (d) a circle with V inside
18. 18.True or false: a dot where wires meet is the symbol for a cell. (a) True (b) False
19. 19.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
20. 20.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) LED (b) resistor (c) switch (d) voltmeter
21. 21.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) both lines (c) neither line (d) the longer line
22. 22.True or false: a circle with a cross is the symbol for a cell. (a) True (b) False
23. 23.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) ammeter (b) switch (c) battery (d) junction
24. 24.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) motor (b) cell (c) capacitor (d) resistor
25. 25.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) switch (b) cell (c) junction (d) resistor
26. 26.Which drawing is the symbol for a bulb? (a) a circle with a cross (b) triangle, bar and arrows (c) a small empty box (d) a circle with A inside
27. 27.Which drawing is the symbol for a motor? (a) a long and a short line (b) a circle with an X in it (c) a circle with M inside (d) a dot where wires meet
28. 28.Which drawing is the symbol for a wire? (a) a dot where wires meet (b) two or more cell symbols (c) a straight line (d) many long-short pairs
29. 29.True or false: a circle with M inside is the symbol for a motor. (a) True (b) False
30. 30.True or false: a dot where wires meet is the symbol for a motor. (a) True (b) False
31. 31.✏️ In a circuit diagram, which part is drawn as a straight line? (a) wire (b) voltmeter (c) motor (d) cell
32. 32.Which drawing is the symbol for a switch? (a) a circle with V inside (b) triangle against a bar (c) a line lifted at a gap (d) a small empty box
33. 33.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
34. 34.True or false: a circle with A inside is the symbol for a cell. (a) False (b) True
35. 35.True or false: triangle, bar and arrows is the symbol for a resistor. (a) True (b) False
36. 36.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) ammeter (c) voltmeter (d) LED
37. 37.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
38. 38.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) LED (b) voltmeter (c) diode (d) cell
39. 39.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) capacitor (b) motor (c) battery (d) resistor
40. 40.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True

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