Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 890 · 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 long and a short line is the symbol for an ammeter. (a) False (b) True
2. 2.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) switch (b) motor (c) LED (d) capacitor
3. 3.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
4. 4.Which drawing is the symbol for a motor? (a) a circle with M inside (b) a circle with a cross (c) two equal parallel lines (d) a circle with V inside
5. 5.Which drawing is the symbol for a diode? (a) a dot where wires meet (b) triangle, bar and arrows (c) one tall, one short bar (d) triangle against a bar
6. 6.True or false: a circle with a cross is the symbol for a switch. (a) True (b) False
7. 7.✏️ In a circuit diagram, which part is drawn as a straight line? (a) battery (b) wire (c) motor (d) switch
8. 8.Which drawing is the symbol for a resistor? (a) a line lifted at a gap (b) a small empty box (c) a circle with a cross (d) triangle, bar and arrows
9. 9.Which drawing is the symbol for a cell? (a) a small empty box (b) a circle with M inside (c) one tall, one short bar (d) a circle with an X in it
10. 10.True or false: triangle against a bar is the symbol for a voltmeter. (a) True (b) False
11. 11.True or false: triangle, bar and arrows is the symbol for a wire. (a) False (b) True
12. 12.Which drawing is the symbol for an LED? (a) a circle with M inside (b) a circle with a cross (c) triangle, bar and arrows (d) two or more cell symbols
13. 13.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) LED (b) motor (c) wire (d) capacitor
14. 14.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) diode (b) capacitor (c) cell (d) LED
15. 15.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) little stars (c) wavy lines (d) straight lines
16. 16.Which drawing is the symbol for an ammeter? (a) a circle with a cross (b) a circle with A inside (c) a circle with V inside (d) many long-short pairs
17. 17.Which drawing is the symbol for a junction? (a) two or more cell symbols (b) a circle with M inside (c) many long-short pairs (d) a dot where wires meet
18. 18.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) neither line (c) the longer line (d) both lines
19. 19.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) bulb (b) motor (c) diode (d) junction
20. 20.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
21. 21.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) ammeter (b) battery (c) voltmeter (d) resistor
22. 22.True or false: a straight line is the symbol for a wire. (a) False (b) True
23. 23.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
24. 24.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) bulb (b) motor (c) ammeter (d) LED
25. 25.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
26. 26.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
27. 27.Which drawing is the symbol for a bulb? (a) a circle with an X in it (b) two or more cell symbols (c) a small empty box (d) a circle with V inside
28. 28.Which drawing is the symbol for a switch? (a) a circle with a cross (b) one tall, one short bar (c) a circle with A inside (d) a line lifted at a gap
29. 29.True or false: two equal parallel lines is the symbol for a battery. (a) False (b) True
30. 30.Which drawing is the symbol for a capacitor? (a) a circle with M inside (b) many long-short pairs (c) two equal parallel lines (d) triangle, bar and arrows
31. 31.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) resistor (b) wire (c) LED (d) battery
32. 32.True or false: a plain rectangle is the symbol for a junction. (a) True (b) False
33. 33.True or false: a circle with an X in it is the symbol for a cell. (a) True (b) False
34. 34.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) cell (c) switch (d) bulb
35. 35.Which drawing is the symbol for a voltmeter? (a) many long-short pairs (b) a circle with V inside (c) two equal parallel lines (d) two or more cell symbols
36. 36.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) to make it colourful (c) symbols are heavier (d) quick and clear for all
37. 37.Which drawing is the symbol for a cell? (a) a circle with A inside (b) two or more cell symbols (c) a plain rectangle (d) a long and a short line
38. 38.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) switch (c) ammeter (d) voltmeter
39. 39.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) voltmeter (b) resistor (c) motor (d) bulb
40. 40.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) bulb (b) battery (c) resistor (d) diode

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