Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 877 · 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 cell symbol, which line is the + terminal? (a) both lines (b) the shorter line (c) neither line (d) the longer line
2. 2.Which drawing is the symbol for a switch? (a) a circle with an X in it (b) a line lifted at a gap (c) many long-short pairs (d) a long and a short line
3. 3.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) bulb (b) cell (c) voltmeter (d) diode
4. 4.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) junction (b) resistor (c) bulb (d) ammeter
5. 5.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) wire (b) capacitor (c) switch (d) voltmeter
6. 6.Which drawing is the symbol for a cell? (a) a straight line (b) a dot where wires meet (c) a plain rectangle (d) a long and a short line
7. 7.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) junction (b) switch (c) wire (d) resistor
8. 8.Which drawing is the symbol for a diode? (a) a circle with V inside (b) triangle against a bar (c) a circle with M inside (d) many long-short pairs
9. 9.True or false: a straight line is the symbol for a diode. (a) True (b) False
10. 10.True or false: a circle with M inside is the symbol for a battery. (a) True (b) False
11. 11.True or false: one tall, one short bar is the symbol for an LED. (a) True (b) False
12. 12.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) symbols are heavier (c) to make it colourful (d) quick and clear for all
13. 13.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) capacitor (b) battery (c) switch (d) motor
14. 14.Which drawing is the symbol for a junction? (a) many long-short pairs (b) a plain rectangle (c) a straight line (d) a dot where wires meet
15. 15.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) motor (b) cell (c) voltmeter (d) LED
16. 16.Which drawing is the symbol for a voltmeter? (a) triangle against a bar (b) a circle with a cross (c) a circle with V inside (d) a long and a short line
17. 17.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) wavy lines (c) little stars (d) dotted circles
18. 18.True or false: a long and a short line is the symbol for a switch. (a) True (b) False
19. 19.True or false: many long-short pairs is the symbol for a resistor. (a) False (b) True
20. 20.True or false: a circle with an X in it is the symbol for a switch. (a) False (b) True
21. 21.Which drawing is the symbol for a resistor? (a) triangle, bar and arrows (b) a circle with A inside (c) a circle with an X in it (d) a plain rectangle
22. 22.True or false: a circle with V inside is the symbol for a voltmeter. (a) True (b) False
23. 23.True or false: triangle, bar and arrows is the symbol for a cell. (a) True (b) False
24. 24.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) resistor (b) motor (c) voltmeter (d) capacitor
25. 25.Which drawing is the symbol for a motor? (a) a circle with V inside (b) a circle with a cross (c) a circle with M inside (d) a circle with an X in it
26. 26.True or false: triangle against a bar is the symbol for a switch. (a) False (b) True
27. 27.True or false: a circle with an X in it is the symbol for a battery. (a) True (b) False
28. 28.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) ammeter (c) resistor (d) junction
29. 29.True or false: a circle with V inside is the symbol for a diode. (a) True (b) False
30. 30.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
31. 31.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
32. 32.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) switch (b) junction (c) bulb (d) cell
33. 33.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) motor (c) voltmeter (d) capacitor
34. 34.Which drawing is the symbol for a wire? (a) a long and a short line (b) a circle with M inside (c) a straight line (d) one tall, one short bar
35. 35.True or false: a circle with M inside is the symbol for a wire. (a) True (b) False
36. 36.Which drawing is the symbol for a bulb? (a) triangle, bar and arrows (b) a line lifted at a gap (c) a circle with an X in it (d) a small empty box
37. 37.True or false: a circle with an X in it is the symbol for a motor. (a) True (b) False
38. 38.Which drawing is the symbol for a bulb? (a) a circle with a cross (b) a line lifted at a gap (c) a straight line (d) a circle with M inside
39. 39.True or false: two or more cell symbols is the symbol for a resistor. (a) True (b) False
40. 40.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False

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