Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 157 · 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.Which drawing is the symbol for a battery? (a) a circle with a cross (b) a small empty box (c) two or more cell symbols (d) a circle with an X in it
2. 2.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) both lines (c) neither line (d) the shorter line
3. 3.Which drawing is the symbol for a bulb? (a) a line lifted at a gap (b) a circle with an X in it (c) a circle with V inside (d) a long and a short line
4. 4.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) diode (b) cell (c) switch (d) bulb
5. 5.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
6. 6.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) straight lines (c) dotted circles (d) little stars
7. 7.Which drawing is the symbol for an LED? (a) a circle with an X in it (b) a circle with V inside (c) triangle, bar and arrows (d) two or more cell symbols
8. 8.True or false: triangle against a bar is the symbol for a battery. (a) True (b) False
9. 9.Which drawing is the symbol for a switch? (a) a circle with V inside (b) two or more cell symbols (c) a dot where wires meet (d) a line lifted at a gap
10. 10.Which drawing is the symbol for a cell? (a) a circle with a cross (b) many long-short pairs (c) two equal parallel lines (d) a long and a short line
11. 11.True or false: a circle with V inside is the symbol for a voltmeter. (a) True (b) False
12. 12.Which drawing is the symbol for a wire? (a) a small empty box (b) a plain rectangle (c) a straight line (d) two or more cell symbols
13. 13.Which drawing is the symbol for a junction? (a) a circle with a cross (b) two equal parallel lines (c) a straight line (d) a dot where wires meet
14. 14.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) bulb (b) battery (c) motor (d) capacitor
15. 15.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) ammeter (b) resistor (c) bulb (d) wire
16. 16.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) wire (b) resistor (c) bulb (d) battery
17. 17.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) LED (b) battery (c) switch (d) ammeter
18. 18.True or false: a circle with A inside is the symbol for a voltmeter. (a) True (b) False
19. 19.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
20. 20.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) switch (b) resistor (c) battery (d) bulb
21. 21.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
22. 22.✏️ In a circuit diagram, which part is drawn as a straight line? (a) voltmeter (b) motor (c) wire (d) resistor
23. 23.Which drawing is the symbol for a motor? (a) two equal parallel lines (b) triangle, bar and arrows (c) a long and a short line (d) a circle with M inside
24. 24.True or false: a small empty box is the symbol for a battery. (a) True (b) False
25. 25.True or false: many long-short pairs is the symbol for a motor. (a) True (b) False
26. 26.Which drawing is the symbol for a diode? (a) a circle with an X in it (b) a long and a short line (c) two or more cell symbols (d) triangle against a bar
27. 27.Which drawing is the symbol for a voltmeter? (a) a circle with A inside (b) a circle with an X in it (c) a circle with V inside (d) many long-short pairs
28. 28.True or false: a straight line is the symbol for a cell. (a) True (b) False
29. 29.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) switch (b) motor (c) LED (d) diode
30. 30.Which drawing is the symbol for a bulb? (a) one tall, one short bar (b) triangle against a bar (c) a circle with A inside (d) a circle with a cross
31. 31.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) wire (b) bulb (c) LED (d) motor
32. 32.Which drawing is the symbol for a capacitor? (a) a long and a short line (b) two equal parallel lines (c) triangle, bar and arrows (d) a dot where wires meet
33. 33.True or false: a circle with M inside is the symbol for a resistor. (a) False (b) True
34. 34.True or false: a circle with V inside is the symbol for a bulb. (a) True (b) False
35. 35.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
36. 36.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) battery (b) motor (c) junction (d) cell
37. 37.✏️ 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
38. 38.True or false: a long and a short line is the symbol for an LED. (a) True (b) False
39. 39.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
40. 40.True or false: two or more cell symbols is the symbol for a diode. (a) False (b) True

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