Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 58 · 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 straight line is the symbol for a wire. (a) False (b) True
2. 2.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) the shorter line (c) both lines (d) neither line
3. 3.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) dotted circles (c) little stars (d) wavy lines
4. 4.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) ammeter (b) wire (c) switch (d) bulb
5. 5.True or false: a plain rectangle is the symbol for a junction. (a) False (b) True
6. 6.Which drawing is the symbol for a diode? (a) triangle against a bar (b) many long-short pairs (c) two equal parallel lines (d) a circle with an X in it
7. 7.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
8. 8.Which drawing is the symbol for an ammeter? (a) a circle with M inside (b) a circle with A inside (c) a line lifted at a gap (d) a straight line
9. 9.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) capacitor (b) switch (c) LED (d) junction
10. 10.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) cell (b) junction (c) switch (d) battery
11. 11.Which drawing is the symbol for a voltmeter? (a) a line lifted at a gap (b) a straight line (c) a circle with an X in it (d) a circle with V inside
12. 12.Which drawing is the symbol for an LED? (a) a small empty box (b) a dot where wires meet (c) triangle, bar and arrows (d) a circle with a cross
13. 13.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) battery (b) LED (c) bulb (d) ammeter
14. 14.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) bulb (c) voltmeter (d) ammeter
15. 15.True or false: two equal parallel lines is the symbol for a motor. (a) True (b) False
16. 16.Which drawing is the symbol for a battery? (a) a circle with a cross (b) two or more cell symbols (c) triangle against a bar (d) one tall, one short bar
17. 17.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) symbols are heavier (c) to hide the circuit (d) to make it colourful
18. 18.Which drawing is the symbol for a capacitor? (a) two or more cell symbols (b) two equal parallel lines (c) one tall, one short bar (d) a circle with a cross
19. 19.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) battery (b) switch (c) bulb (d) capacitor
20. 20.Which drawing is the symbol for a resistor? (a) a circle with M inside (b) triangle against a bar (c) a line lifted at a gap (d) a small empty box
21. 21.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) battery (c) resistor (d) LED
22. 22.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
23. 23.True or false: a small empty box is the symbol for a diode. (a) False (b) True
24. 24.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) junction (b) wire (c) motor (d) diode
25. 25.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) bulb (b) wire (c) diode (d) capacitor
26. 26.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) diode (b) voltmeter (c) battery (d) junction
27. 27.Which drawing is the symbol for a motor? (a) many long-short pairs (b) a circle with M inside (c) two equal parallel lines (d) one tall, one short bar
28. 28.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
29. 29.Which drawing is the symbol for a wire? (a) triangle against a bar (b) a line lifted at a gap (c) a straight line (d) a dot where wires meet
30. 30.True or false: a circle with M inside is the symbol for a switch. (a) False (b) True
31. 31.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) resistor (b) cell (c) wire (d) LED
32. 32.Which drawing is the symbol for a battery? (a) triangle against a bar (b) a straight line (c) a small empty box (d) many long-short pairs
33. 33.Which drawing is the symbol for a bulb? (a) triangle against a bar (b) a plain rectangle (c) one tall, one short bar (d) a circle with an X in it
34. 34.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
35. 35.True or false: a small empty box is the symbol for an LED. (a) False (b) True
36. 36.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
37. 37.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) resistor (b) cell (c) switch (d) LED
38. 38.True or false: two equal parallel lines is the symbol for a wire. (a) False (b) True
39. 39.True or false: two or more cell symbols is the symbol for a cell. (a) True (b) False
40. 40.Which drawing is the symbol for a switch? (a) a plain rectangle (b) a circle with M inside (c) a line lifted at a gap (d) a circle with a cross

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