Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 920 · 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.True or false: a small empty box is the symbol for a battery. (a) False (b) True
2. 2.Which drawing is the symbol for a resistor? (a) two equal parallel lines (b) a plain rectangle (c) a circle with A inside (d) triangle, bar and arrows
3. 3.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) triangle, bar and arrows (c) a circle with a cross (d) a line lifted at a gap
4. 4.✏️ 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
5. 5.Which drawing is the symbol for a wire? (a) a plain rectangle (b) a straight line (c) many long-short pairs (d) a small empty box
6. 6.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) ammeter (b) voltmeter (c) switch (d) cell
7. 7.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) a circle with A inside (c) triangle against a bar (d) two or more cell symbols
8. 8.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) wire (b) resistor (c) motor (d) junction
9. 9.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
10. 10.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) switch (b) resistor (c) battery (d) cell
11. 11.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) wire (b) LED (c) battery (d) bulb
12. 12.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) junction (c) capacitor (d) battery
13. 13.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) both lines (c) neither line (d) the longer line
14. 14.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) straight lines (c) wavy lines (d) dotted circles
15. 15.True or false: two or more cell symbols is the symbol for an LED. (a) True (b) False
16. 16.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) resistor (b) switch (c) junction (d) motor
17. 17.Which drawing is the symbol for a junction? (a) a line lifted at a gap (b) triangle against a bar (c) a dot where wires meet (d) a circle with a cross
18. 18.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) motor (b) resistor (c) voltmeter (d) cell
19. 19.Which drawing is the symbol for a voltmeter? (a) two or more cell symbols (b) a dot where wires meet (c) a circle with an X in it (d) a circle with V inside
20. 20.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) LED (b) diode (c) voltmeter (d) switch
21. 21.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) switch (c) junction (d) resistor
22. 22.True or false: a circle with A inside is the symbol for a resistor. (a) True (b) False
23. 23.Which drawing is the symbol for an LED? (a) triangle, bar and arrows (b) a plain rectangle (c) a small empty box (d) a circle with a cross
24. 24.Which drawing is the symbol for a capacitor? (a) a dot where wires meet (b) a straight line (c) two or more cell symbols (d) two equal parallel lines
25. 25.True or false: triangle, bar and arrows is the symbol for a battery. (a) True (b) False
26. 26.True or false: a circle with an X in it is the symbol for an ammeter. (a) False (b) True
27. 27.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
28. 28.Which drawing is the symbol for a diode? (a) two or more cell symbols (b) a dot where wires meet (c) one tall, one short bar (d) triangle against a bar
29. 29.True or false: one tall, one short bar is the symbol for a wire. (a) True (b) False
30. 30.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
31. 31.Which drawing is the symbol for a battery? (a) a plain rectangle (b) two equal parallel lines (c) a line lifted at a gap (d) two or more cell symbols
32. 32.True or false: a plain rectangle is the symbol for a capacitor. (a) False (b) True
33. 33.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
34. 34.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 dot where wires meet
35. 35.True or false: a circle with A inside is the symbol for a switch. (a) False (b) True
36. 36.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) diode (b) capacitor (c) battery (d) bulb
37. 37.Which drawing is the symbol for a cell? (a) two or more cell symbols (b) many long-short pairs (c) a straight line (d) a long and a short line
38. 38.True or false: a long and a short line is the symbol for a resistor. (a) True (b) False
39. 39.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
40. 40.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) diode (b) battery (c) ammeter (d) switch

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