Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 467 · 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 cell symbol, which line is the + terminal? (a) the longer line (b) the shorter line (c) neither line (d) both lines
2. 2.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) voltmeter (b) switch (c) resistor (d) cell
3. 3.Which drawing is the symbol for a motor? (a) many long-short pairs (b) two equal parallel lines (c) a circle with V inside (d) a circle with M inside
4. 4.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) bulb (b) ammeter (c) capacitor (d) motor
5. 5.Which drawing is the symbol for a junction? (a) a circle with V inside (b) a dot where wires meet (c) a long and a short line (d) a straight line
6. 6.True or false: a straight line is the symbol for a motor. (a) False (b) True
7. 7.True or false: a long and a short line is the symbol for an LED. (a) True (b) False
8. 8.Which drawing is the symbol for a wire? (a) a plain rectangle (b) triangle, bar and arrows (c) a straight line (d) two or more cell symbols
9. 9.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) quick and clear for all (c) to hide the circuit (d) to make it colourful
10. 10.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) wavy lines (c) little stars (d) straight lines
11. 11.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) switch (b) battery (c) LED (d) bulb
12. 12.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
13. 13.Which drawing is the symbol for a resistor? (a) triangle, bar and arrows (b) a plain rectangle (c) a straight line (d) many long-short pairs
14. 14.✏️ In a circuit diagram, which part is drawn as a straight line? (a) battery (b) diode (c) wire (d) switch
15. 15.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) voltmeter (b) cell (c) battery (d) bulb
16. 16.Which drawing is the symbol for a diode? (a) a long and a short line (b) a small empty box (c) triangle against a bar (d) a circle with M inside
17. 17.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) ammeter (c) resistor (d) diode
18. 18.True or false: a plain rectangle is the symbol for a junction. (a) True (b) False
19. 19.True or false: a dot where wires meet is the symbol for a junction. (a) True (b) False
20. 20.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) wire (c) capacitor (d) motor
21. 21.True or false: triangle against a bar is the symbol for a battery. (a) False (b) True
22. 22.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) diode (b) resistor (c) voltmeter (d) junction
23. 23.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) cell (b) diode (c) switch (d) capacitor
24. 24.Which drawing is the symbol for an ammeter? (a) a dot where wires meet (b) two equal parallel lines (c) a long and a short line (d) a circle with A inside
25. 25.Which drawing is the symbol for a bulb? (a) a circle with V inside (b) triangle, bar and arrows (c) a circle with an X in it (d) a long and a short line
26. 26.True or false: two or more cell symbols is the symbol for a capacitor. (a) True (b) False
27. 27.True or false: a circle with A inside is the symbol for a battery. (a) True (b) False
28. 28.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) LED (b) diode (c) voltmeter (d) bulb
29. 29.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
30. 30.True or false: a circle with an X in it is the symbol for an ammeter. (a) True (b) False
31. 31.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
32. 32.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) bulb (b) junction (c) resistor (d) switch
33. 33.Which drawing is the symbol for an LED? (a) triangle against a bar (b) a circle with M inside (c) a circle with an X in it (d) triangle, bar and arrows
34. 34.Which drawing is the symbol for a battery? (a) a line lifted at a gap (b) a circle with a cross (c) triangle, bar and arrows (d) many long-short pairs
35. 35.True or false: many long-short pairs is the symbol for a cell. (a) False (b) True
36. 36.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
37. 37.Which drawing is the symbol for a resistor? (a) a circle with A inside (b) a small empty box (c) two equal parallel lines (d) a line lifted at a gap
38. 38.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) resistor (b) voltmeter (c) LED (d) cell
39. 39.True or false: a circle with a cross is the symbol for a capacitor. (a) False (b) True
40. 40.True or false: a small empty box is the symbol for a resistor. (a) True (b) False

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