Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 391 · 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 motor? (a) one tall, one short bar (b) a circle with M inside (c) triangle, bar and arrows (d) a circle with a cross
2. 2.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
3. 3.✏️ 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
4. 4.Which drawing is the symbol for a resistor? (a) a plain rectangle (b) a circle with M inside (c) a straight line (d) two or more cell symbols
5. 5.Which drawing is the symbol for a switch? (a) a circle with M inside (b) a line lifted at a gap (c) a circle with A inside (d) a circle with an X in it
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 circle with a cross? (a) capacitor (b) bulb (c) voltmeter (d) motor
8. 8.True or false: triangle, bar and arrows is the symbol for a resistor. (a) False (b) True
9. 9.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) cell (b) switch (c) battery (d) resistor
10. 10.Which drawing is the symbol for an LED? (a) triangle, bar and arrows (b) a circle with M inside (c) many long-short pairs (d) a circle with an X in it
11. 11.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
12. 12.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) LED (b) ammeter (c) capacitor (d) wire
13. 13.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) switch (b) battery (c) resistor (d) motor
14. 14.True or false: a circle with a cross is the symbol for a motor. (a) True (b) False
15. 15.True or false: a line lifted at a gap is the symbol for a junction. (a) True (b) False
16. 16.Which drawing is the symbol for a voltmeter? (a) triangle against a bar (b) a circle with V inside (c) a dot where wires meet (d) a circle with M inside
17. 17.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) wavy lines (c) dotted circles (d) straight lines
18. 18.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) wire (b) voltmeter (c) battery (d) junction
19. 19.Which drawing is the symbol for a diode? (a) a straight line (b) two equal parallel lines (c) a dot where wires meet (d) triangle against a bar
20. 20.Which drawing is the symbol for a junction? (a) a straight line (b) triangle, bar and arrows (c) a dot where wires meet (d) a circle with an X in it
21. 21.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
22. 22.True or false: one tall, one short bar is the symbol for a bulb. (a) True (b) False
23. 23.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
24. 24.Which drawing is the symbol for a wire? (a) a circle with A inside (b) two or more cell symbols (c) a straight line (d) two equal parallel lines
25. 25.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) bulb (b) battery (c) junction (d) diode
26. 26.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
27. 27.True or false: a circle with a cross is the symbol for a capacitor. (a) False (b) True
28. 28.Which drawing is the symbol for a battery? (a) a small empty box (b) a circle with A inside (c) two or more cell symbols (d) a circle with an X in it
29. 29.Which drawing is the symbol for a resistor? (a) a small empty box (b) a circle with M inside (c) triangle, bar and arrows (d) a circle with a cross
30. 30.True or false: triangle, bar and arrows is the symbol for a wire. (a) False (b) True
31. 31.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) junction (b) switch (c) LED (d) voltmeter
32. 32.True or false: a circle with A inside is the symbol for a cell. (a) True (b) False
33. 33.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) battery (b) motor (c) cell (d) junction
34. 34.Which drawing is the symbol for a bulb? (a) a small empty box (b) a long and a short line (c) many long-short pairs (d) a circle with a cross
35. 35.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) diode (b) switch (c) cell (d) capacitor
36. 36.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) bulb (b) junction (c) ammeter (d) LED
37. 37.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
38. 38.True or false: a circle with a cross is the symbol for a voltmeter. (a) False (b) True
39. 39.True or false: a straight line is the symbol for a capacitor. (a) True (b) False
40. 40.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) ammeter (b) voltmeter (c) cell (d) motor

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