Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 821 · 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.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) to hide the circuit (c) to make it colourful (d) quick and clear for all
2. 2.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) diode (b) motor (c) capacitor (d) battery
3. 3.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) ammeter (b) resistor (c) junction (d) voltmeter
4. 4.True or false: a small empty box is the symbol for a cell. (a) False (b) True
5. 5.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) a straight line
6. 6.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) switch (b) voltmeter (c) LED (d) bulb
7. 7.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the longer line (c) neither line (d) the shorter line
8. 8.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) switch (b) ammeter (c) motor (d) junction
9. 9.Which drawing is the symbol for a bulb? (a) a circle with V inside (b) a circle with an X in it (c) a small empty box (d) a line lifted at a gap
10. 10.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
11. 11.Which drawing is the symbol for a battery? (a) many long-short pairs (b) a circle with a cross (c) a small empty box (d) a plain rectangle
12. 12.Which drawing is the symbol for a diode? (a) a straight line (b) a circle with A inside (c) triangle against a bar (d) triangle, bar and arrows
13. 13.Which drawing is the symbol for a wire? (a) a straight line (b) two equal parallel lines (c) triangle, bar and arrows (d) a circle with V inside
14. 14.True or false: one tall, one short bar is the symbol for a bulb. (a) False (b) True
15. 15.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) cell (b) wire (c) LED (d) motor
16. 16.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
17. 17.Which drawing is the symbol for a resistor? (a) two equal parallel lines (b) a plain rectangle (c) triangle, bar and arrows (d) a dot where wires meet
18. 18.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) motor (c) bulb (d) battery
19. 19.Which drawing is the symbol for a battery? (a) triangle against a bar (b) two equal parallel lines (c) two or more cell symbols (d) a long and a short line
20. 20.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) straight lines (c) wavy lines (d) dotted circles
21. 21.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) voltmeter (b) resistor (c) bulb (d) battery
22. 22.Which drawing is the symbol for a resistor? (a) two equal parallel lines (b) a circle with M inside (c) a line lifted at a gap (d) a small empty box
23. 23.Which drawing is the symbol for a switch? (a) two or more cell symbols (b) a long and a short line (c) a line lifted at a gap (d) triangle against a bar
24. 24.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
25. 25.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) diode (b) resistor (c) ammeter (d) bulb
26. 26.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) diode (b) switch (c) cell (d) capacitor
27. 27.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) battery (b) switch (c) bulb (d) diode
28. 28.Which drawing is the symbol for a voltmeter? (a) a circle with A inside (b) two or more cell symbols (c) a circle with V inside (d) a circle with M inside
29. 29.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) bulb (b) capacitor (c) ammeter (d) battery
30. 30.True or false: a line lifted at a gap is the symbol for a voltmeter. (a) False (b) True
31. 31.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) ammeter (b) resistor (c) capacitor (d) wire
32. 32.True or false: a circle with M inside is the symbol for a resistor. (a) True (b) False
33. 33.True or false: a plain rectangle is the symbol for a diode. (a) False (b) True
34. 34.True or false: a dot where wires meet is the symbol for a junction. (a) True (b) False
35. 35.Which drawing is the symbol for an ammeter? (a) triangle, bar and arrows (b) a circle with A inside (c) one tall, one short bar (d) a circle with V inside
36. 36.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) junction (b) capacitor (c) LED (d) switch
37. 37.True or false: a circle with V inside is the symbol for an ammeter. (a) True (b) False
38. 38.True or false: a circle with an X in it is the symbol for a voltmeter. (a) False (b) True
39. 39.✏️ In a circuit diagram, which part is drawn as a straight line? (a) wire (b) switch (c) battery (d) resistor
40. 40.Which drawing is the symbol for a bulb? (a) a line lifted at a gap (b) many long-short pairs (c) one tall, one short bar (d) a circle with a cross

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