Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 478 · 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 battery? (a) many long-short pairs (b) a circle with an X in it (c) a long and a short line (d) a small empty box
2. 2.True or false: triangle, bar and arrows is the symbol for a resistor. (a) True (b) False
3. 3.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
4. 4.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) resistor (b) battery (c) ammeter (d) switch
5. 5.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) bulb (b) diode (c) voltmeter (d) capacitor
6. 6.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
7. 7.True or false: a straight line is the symbol for a wire. (a) True (b) False
8. 8.True or false: two or more cell symbols is the symbol for a cell. (a) False (b) True
9. 9.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) LED (b) resistor (c) cell (d) battery
10. 10.Which drawing is the symbol for a diode? (a) a small empty box (b) a straight line (c) triangle against a bar (d) a dot where wires meet
11. 11.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) switch (b) capacitor (c) cell (d) LED
12. 12.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) cell (b) battery (c) motor (d) voltmeter
13. 13.True or false: a circle with a cross is the symbol for a diode. (a) True (b) False
14. 14.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) straight lines (c) wavy lines (d) little stars
15. 15.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) a small empty box (c) triangle, bar and arrows (d) a long and a short line
16. 16.True or false: two equal parallel lines is the symbol for a motor. (a) False (b) True
17. 17.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the shorter line (c) the longer line (d) neither line
18. 18.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) symbols are heavier (c) to hide the circuit (d) to make it colourful
19. 19.Which drawing is the symbol for a switch? (a) a circle with M inside (b) a line lifted at a gap (c) two equal parallel lines (d) many long-short pairs
20. 20.Which drawing is the symbol for a resistor? (a) a straight line (b) two or more cell symbols (c) triangle, bar and arrows (d) a plain rectangle
21. 21.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
22. 22.True or false: a long and a short line is the symbol for an ammeter. (a) True (b) False
23. 23.True or false: a circle with V inside is the symbol for an ammeter. (a) False (b) True
24. 24.Which drawing is the symbol for a bulb? (a) a circle with a cross (b) many long-short pairs (c) two or more cell symbols (d) a circle with M inside
25. 25.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) resistor (b) diode (c) capacitor (d) switch
26. 26.Which drawing is the symbol for a cell? (a) a circle with A inside (b) a straight line (c) triangle, bar and arrows (d) one tall, one short bar
27. 27.True or false: triangle against a bar is the symbol for a resistor. (a) True (b) False
28. 28.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) cell (b) resistor (c) junction (d) LED
29. 29.True or false: triangle against a bar is the symbol for a diode. (a) True (b) False
30. 30.Which drawing is the symbol for a junction? (a) a circle with a cross (b) triangle against a bar (c) a dot where wires meet (d) many long-short pairs
31. 31.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) wire (b) ammeter (c) cell (d) voltmeter
32. 32.Which drawing is the symbol for a wire? (a) a dot where wires meet (b) a straight line (c) one tall, one short bar (d) a circle with an X in it
33. 33.Which drawing is the symbol for a voltmeter? (a) a plain rectangle (b) a small empty box (c) a circle with V inside (d) two or more cell symbols
34. 34.True or false: a small empty box is the symbol for a switch. (a) True (b) False
35. 35.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) a circle with an X in it (c) one tall, one short bar (d) many long-short pairs
36. 36.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) bulb (b) cell (c) wire (d) diode
37. 37.True or false: many long-short pairs is the symbol for a capacitor. (a) False (b) True
38. 38.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
39. 39.True or false: a small empty box is the symbol for a cell. (a) False (b) True
40. 40.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) junction (b) diode (c) LED (d) battery

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