Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 507 · 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 one tall, one short bar? (a) resistor (b) capacitor (c) cell (d) motor
2. 2.True or false: a plain rectangle is the symbol for an LED. (a) False (b) True
3. 3.Which drawing is the symbol for an LED? (a) triangle, bar and arrows (b) two equal parallel lines (c) a circle with an X in it (d) a dot where wires meet
4. 4.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) a straight line (c) triangle against a bar (d) a plain rectangle
5. 5.True or false: a long and a short line is the symbol for a bulb. (a) False (b) True
6. 6.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) switch (c) motor (d) resistor
7. 7.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) straight lines (c) dotted circles (d) little stars
8. 8.True or false: a line lifted at a gap is the symbol for a resistor. (a) False (b) True
9. 9.True or false: a circle with A inside is the symbol for a battery. (a) True (b) False
10. 10.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) cell (b) capacitor (c) LED (d) voltmeter
11. 11.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the shorter line (c) neither line (d) the longer line
12. 12.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) capacitor (b) resistor (c) diode (d) bulb
13. 13.Which drawing is the symbol for a battery? (a) a dot where wires meet (b) triangle, bar and arrows (c) two equal parallel lines (d) two or more cell symbols
14. 14.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) bulb (b) LED (c) switch (d) battery
15. 15.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) capacitor (b) wire (c) LED (d) motor
16. 16.True or false: a circle with V inside is the symbol for a switch. (a) False (b) True
17. 17.Which drawing is the symbol for a motor? (a) a circle with M inside (b) a small empty box (c) a straight line (d) many long-short pairs
18. 18.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) battery (b) ammeter (c) resistor (d) capacitor
19. 19.Which drawing is the symbol for a junction? (a) a circle with A inside (b) a dot where wires meet (c) a circle with a cross (d) many long-short pairs
20. 20.True or false: a dot where wires meet is the symbol for a junction. (a) True (b) False
21. 21.True or false: a dot where wires meet is the symbol for a motor. (a) True (b) False
22. 22.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) diode (c) battery (d) ammeter
23. 23.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) ammeter (b) wire (c) switch (d) battery
24. 24.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
25. 25.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) cell (b) bulb (c) battery (d) junction
26. 26.Which drawing is the symbol for an ammeter? (a) many long-short pairs (b) two equal parallel lines (c) a line lifted at a gap (d) a circle with A inside
27. 27.True or false: triangle against a bar is the symbol for a battery. (a) True (b) False
28. 28.Which drawing is the symbol for a resistor? (a) a plain rectangle (b) one tall, one short bar (c) a circle with V inside (d) a circle with M inside
29. 29.✏️ 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
30. 30.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) capacitor (b) resistor (c) cell (d) junction
31. 31.Which drawing is the symbol for a wire? (a) a dot where wires meet (b) triangle against a bar (c) two equal parallel lines (d) a straight line
32. 32.True or false: one tall, one short bar is the symbol for a capacitor. (a) True (b) False
33. 33.Which drawing is the symbol for a switch? (a) a long and a short line (b) many long-short pairs (c) a line lifted at a gap (d) a circle with A inside
34. 34.Which drawing is the symbol for a cell? (a) a circle with V inside (b) two or more cell symbols (c) triangle against a bar (d) a long and a short line
35. 35.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
36. 36.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) switch (b) LED (c) bulb (d) resistor
37. 37.True or false: a long and a short line is the symbol for a wire. (a) True (b) False
38. 38.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) battery (b) LED (c) motor (d) diode
39. 39.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) battery (c) cell (d) ammeter
40. 40.Which drawing is the symbol for a capacitor? (a) a circle with an X in it (b) a circle with a cross (c) one tall, one short bar (d) two equal parallel lines

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