Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 831 · 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 circuit diagram, which part is drawn as many long-short pairs? (a) resistor (b) LED (c) cell (d) battery
2. 2.✏️ In a circuit diagram, which part is drawn as a straight line? (a) wire (b) cell (c) battery (d) ammeter
3. 3.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the longer line (c) the shorter line (d) neither line
4. 4.Which drawing is the symbol for a bulb? (a) a circle with A inside (b) two or more cell symbols (c) a dot where wires meet (d) a circle with an X in it
5. 5.True or false: a circle with M inside is the symbol for a switch. (a) True (b) False
6. 6.Which drawing is the symbol for a voltmeter? (a) a small empty box (b) a circle with V inside (c) a circle with an X in it (d) a circle with a cross
7. 7.True or false: one tall, one short bar is the symbol for an ammeter. (a) True (b) False
8. 8.Which drawing is the symbol for a cell? (a) many long-short pairs (b) a circle with A inside (c) triangle, bar and arrows (d) one tall, one short bar
9. 9.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) diode (b) cell (c) ammeter (d) bulb
10. 10.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) bulb (b) battery (c) capacitor (d) cell
11. 11.Which drawing is the symbol for a cell? (a) a long and a short line (b) a circle with V inside (c) two or more cell symbols (d) a circle with A inside
12. 12.Which drawing is the symbol for an LED? (a) one tall, one short bar (b) a small empty box (c) a circle with a cross (d) triangle, bar and arrows
13. 13.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) battery (b) LED (c) resistor (d) voltmeter
14. 14.Which drawing is the symbol for a motor? (a) a plain rectangle (b) one tall, one short bar (c) a circle with M inside (d) a small empty box
15. 15.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) junction (b) switch (c) resistor (d) ammeter
16. 16.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) quick and clear for all (c) to hide the circuit (d) symbols are heavier
17. 17.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) junction (b) cell (c) capacitor (d) voltmeter
18. 18.Which drawing is the symbol for a junction? (a) two equal parallel lines (b) a dot where wires meet (c) triangle, bar and arrows (d) a small empty box
19. 19.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) LED (b) battery (c) cell (d) bulb
20. 20.True or false: triangle against a bar is the symbol for a battery. (a) True (b) False
21. 21.Which drawing is the symbol for a capacitor? (a) many long-short pairs (b) two equal parallel lines (c) a circle with V inside (d) two or more cell symbols
22. 22.True or false: a straight line is the symbol for a wire. (a) True (b) False
23. 23.Which drawing is the symbol for a diode? (a) many long-short pairs (b) two or more cell symbols (c) a line lifted at a gap (d) triangle against a bar
24. 24.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) dotted circles (c) wavy lines (d) little stars
25. 25.True or false: one tall, one short bar is the symbol for a voltmeter. (a) False (b) True
26. 26.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) battery (b) cell (c) capacitor (d) resistor
27. 27.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) wire (b) LED (c) bulb (d) diode
28. 28.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) cell (b) switch (c) bulb (d) voltmeter
29. 29.True or false: triangle, bar and arrows is the symbol for a battery. (a) True (b) False
30. 30.Which drawing is the symbol for a resistor? (a) one tall, one short bar (b) a circle with M inside (c) a circle with a cross (d) a small empty box
31. 31.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) battery (b) voltmeter (c) LED (d) switch
32. 32.True or false: a line lifted at a gap is the symbol for an LED. (a) True (b) False
33. 33.True or false: two equal parallel lines is the symbol for a switch. (a) True (b) False
34. 34.Which drawing is the symbol for a battery? (a) triangle against a bar (b) a plain rectangle (c) one tall, one short bar (d) two or more cell symbols
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: a circle with A inside is the symbol for a capacitor. (a) True (b) False
37. 37.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) ammeter (b) bulb (c) cell (d) junction
38. 38.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
39. 39.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) battery (b) motor (c) LED (d) bulb
40. 40.Which drawing is the symbol for an ammeter? (a) a small empty box (b) a circle with V inside (c) two equal parallel lines (d) a circle with A inside

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