Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 938 · 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: one tall, one short bar is the symbol for an LED. (a) True (b) False
2. 2.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) LED (b) wire (c) bulb (d) motor
3. 3.Which drawing is the symbol for a switch? (a) a small empty box (b) many long-short pairs (c) a line lifted at a gap (d) one tall, one short bar
4. 4.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
5. 5.Which drawing is the symbol for a battery? (a) many long-short pairs (b) two equal parallel lines (c) triangle, bar and arrows (d) a circle with a cross
6. 6.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) voltmeter (c) switch (d) ammeter
7. 7.✏️ 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
8. 8.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) motor (c) junction (d) wire
9. 9.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) dotted circles (c) wavy lines (d) straight lines
10. 10.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) voltmeter (b) cell (c) capacitor (d) switch
11. 11.✏️ In a circuit diagram, which part is drawn as a straight line? (a) battery (b) wire (c) LED (d) motor
12. 12.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
13. 13.Which drawing is the symbol for an ammeter? (a) many long-short pairs (b) two or more cell symbols (c) a circle with M inside (d) a circle with A inside
14. 14.True or false: a line lifted at a gap is the symbol for a bulb. (a) False (b) True
15. 15.True or false: triangle against a bar is the symbol for an LED. (a) True (b) False
16. 16.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) neither line (c) both lines (d) the longer line
17. 17.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
18. 18.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) junction (b) switch (c) motor (d) voltmeter
19. 19.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) junction (b) resistor (c) capacitor (d) motor
20. 20.True or false: two or more cell symbols is the symbol for a voltmeter. (a) False (b) True
21. 21.Which drawing is the symbol for a capacitor? (a) triangle against a bar (b) a long and a short line (c) a dot where wires meet (d) two equal parallel lines
22. 22.Which drawing is the symbol for a motor? (a) many long-short pairs (b) a circle with an X in it (c) a straight line (d) a circle with M inside
23. 23.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
24. 24.Which drawing is the symbol for a battery? (a) two or more cell symbols (b) two equal parallel lines (c) a small empty box (d) a circle with an X in it
25. 25.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) battery (c) wire (d) resistor
26. 26.True or false: triangle against a bar is the symbol for an ammeter. (a) False (b) True
27. 27.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) capacitor (b) battery (c) diode (d) switch
28. 28.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
29. 29.True or false: a straight line is the symbol for a bulb. (a) True (b) False
30. 30.Which drawing is the symbol for a diode? (a) a circle with a cross (b) many long-short pairs (c) triangle against a bar (d) a long and a short line
31. 31.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) many long-short pairs (c) two equal parallel lines (d) two or more cell symbols
32. 32.True or false: a circle with A inside is the symbol for a wire. (a) True (b) False
33. 33.True or false: a dot where wires meet is the symbol for an LED. (a) False (b) True
34. 34.Which drawing is the symbol for an LED? (a) a circle with M inside (b) triangle, bar and arrows (c) many long-short pairs (d) a circle with an X in it
35. 35.True or false: a circle with V inside is the symbol for a battery. (a) True (b) False
36. 36.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) diode (b) cell (c) resistor (d) battery
37. 37.True or false: a straight line is the symbol for a wire. (a) True (b) False
38. 38.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) wire (c) battery (d) switch
39. 39.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) ammeter (b) voltmeter (c) diode (d) bulb
40. 40.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True

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