Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 594 · 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 a bulb. (a) False (b) True
2. 2.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) resistor (b) wire (c) bulb (d) junction
3. 3.✏️ In a circuit diagram, which part is drawn as a straight line? (a) LED (b) battery (c) wire (d) cell
4. 4.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) wire (b) motor (c) diode (d) cell
5. 5.True or false: many long-short pairs is the symbol for a motor. (a) False (b) True
6. 6.Which drawing is the symbol for a wire? (a) a line lifted at a gap (b) a circle with a cross (c) a circle with an X in it (d) a straight line
7. 7.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) dotted circles (c) wavy lines (d) straight lines
8. 8.Which drawing is the symbol for a capacitor? (a) a small empty box (b) many long-short pairs (c) a circle with V inside (d) two equal parallel lines
9. 9.✏️ 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
10. 10.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) LED (c) bulb (d) cell
11. 11.Which drawing is the symbol for an ammeter? (a) a small empty box (b) a circle with A inside (c) many long-short pairs (d) a dot where wires meet
12. 12.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) wire (b) motor (c) switch (d) voltmeter
13. 13.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) wire (b) cell (c) junction (d) diode
14. 14.True or false: a circle with a cross is the symbol for an ammeter. (a) False (b) True
15. 15.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) a straight line (c) a circle with A inside (d) two or more cell symbols
16. 16.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) resistor (b) junction (c) cell (d) bulb
17. 17.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) resistor (c) junction (d) switch
18. 18.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) both lines (c) the shorter line (d) neither line
19. 19.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) capacitor (b) switch (c) diode (d) battery
20. 20.True or false: triangle against a bar is the symbol for an ammeter. (a) False (b) True
21. 21.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
22. 22.Which drawing is the symbol for a junction? (a) a line lifted at a gap (b) a long and a short line (c) a dot where wires meet (d) a circle with V inside
23. 23.True or false: triangle, bar and arrows is the symbol for a resistor. (a) True (b) False
24. 24.True or false: a circle with a cross is the symbol for a capacitor. (a) True (b) False
25. 25.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) battery (b) resistor (c) wire (d) motor
26. 26.True or false: two equal parallel lines is the symbol for a diode. (a) False (b) True
27. 27.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) LED (b) motor (c) cell (d) diode
28. 28.Which drawing is the symbol for a switch? (a) a dot where wires meet (b) triangle, bar and arrows (c) a line lifted at a gap (d) a circle with M inside
29. 29.Which drawing is the symbol for a motor? (a) a line lifted at a gap (b) a long and a short line (c) a circle with a cross (d) a circle with M inside
30. 30.Which drawing is the symbol for a battery? (a) a circle with an X in it (b) one tall, one short bar (c) a straight line (d) two or more cell symbols
31. 31.True or false: a circle with V inside is the symbol for a voltmeter. (a) True (b) False
32. 32.True or false: a circle with a cross is the symbol for a battery. (a) True (b) False
33. 33.True or false: triangle, bar and arrows is the symbol for a switch. (a) True (b) False
34. 34.Which drawing is the symbol for a cell? (a) a circle with an X in it (b) triangle, bar and arrows (c) a plain rectangle (d) one tall, one short bar
35. 35.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
36. 36.True or false: many long-short pairs is the symbol for a diode. (a) False (b) True
37. 37.True or false: a circle with A inside is the symbol for a voltmeter. (a) False (b) True
38. 38.Which drawing is the symbol for a diode? (a) triangle against a bar (b) a plain rectangle (c) a line lifted at a gap (d) a circle with M inside
39. 39.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
40. 40.True or false: two equal parallel lines is the symbol for a bulb. (a) False (b) True

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