Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 894 · 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: triangle against a bar is the symbol for a diode. (a) True (b) False
2. 2.Which drawing is the symbol for a voltmeter? (a) a straight line (b) a circle with V inside (c) two equal parallel lines (d) one tall, one short bar
3. 3.Which drawing is the symbol for a resistor? (a) triangle against a bar (b) a small empty box (c) many long-short pairs (d) one tall, one short bar
4. 4.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) ammeter (b) capacitor (c) voltmeter (d) cell
5. 5.True or false: a circle with an X in it is the symbol for a diode. (a) True (b) False
6. 6.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) switch (c) capacitor (d) resistor
7. 7.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) little stars (c) straight lines (d) dotted circles
8. 8.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) bulb (b) cell (c) capacitor (d) resistor
9. 9.True or false: a long and a short line is the symbol for a motor. (a) True (b) False
10. 10.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) wire (b) ammeter (c) voltmeter (d) resistor
11. 11.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) two equal parallel lines (c) a straight line (d) a small empty box
12. 12.Which drawing is the symbol for a capacitor? (a) two or more cell symbols (b) two equal parallel lines (c) a circle with V inside (d) a circle with A inside
13. 13.True or false: a circle with M inside is the symbol for an ammeter. (a) False (b) True
14. 14.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) voltmeter (b) bulb (c) switch (d) ammeter
15. 15.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) a straight line (c) triangle, bar and arrows (d) a line lifted at a gap
16. 16.Which drawing is the symbol for a battery? (a) two or more cell symbols (b) a line lifted at a gap (c) two equal parallel lines (d) a circle with A inside
17. 17.Which drawing is the symbol for a resistor? (a) triangle, bar and arrows (b) a circle with an X in it (c) a circle with V inside (d) a plain rectangle
18. 18.Which drawing is the symbol for a cell? (a) a dot where wires meet (b) one tall, one short bar (c) many long-short pairs (d) a straight line
19. 19.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) both lines (c) the longer line (d) the shorter line
20. 20.✏️ 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
21. 21.True or false: a small empty box is the symbol for an ammeter. (a) False (b) True
22. 22.Which drawing is the symbol for a battery? (a) a circle with a cross (b) many long-short pairs (c) one tall, one short bar (d) a dot where wires meet
23. 23.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
24. 24.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) battery (b) LED (c) switch (d) diode
25. 25.True or false: a long and a short line is the symbol for an ammeter. (a) True (b) False
26. 26.True or false: two or more cell symbols is the symbol for an ammeter. (a) True (b) False
27. 27.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) junction (b) bulb (c) switch (d) resistor
28. 28.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) LED (b) motor (c) junction (d) switch
29. 29.True or false: one tall, one short bar is the symbol for a capacitor. (a) True (b) False
30. 30.Which drawing is the symbol for a junction? (a) a circle with M inside (b) a plain rectangle (c) two or more cell symbols (d) a dot where wires meet
31. 31.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) resistor (b) switch (c) wire (d) bulb
32. 32.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) switch (b) junction (c) LED (d) diode
33. 33.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
34. 34.Which drawing is the symbol for an LED? (a) a plain rectangle (b) triangle, bar and arrows (c) a circle with M inside (d) a circle with A inside
35. 35.Which drawing is the symbol for a wire? (a) a straight line (b) two equal parallel lines (c) a line lifted at a gap (d) a circle with an X in it
36. 36.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
37. 37.True or false: a line lifted at a gap is the symbol for a junction. (a) False (b) True
38. 38.Which drawing is the symbol for a bulb? (a) a dot where wires meet (b) one tall, one short bar (c) two equal parallel lines (d) a circle with a cross
39. 39.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
40. 40.Which drawing is the symbol for a diode? (a) a long and a short line (b) triangle against a bar (c) a circle with V inside (d) many long-short pairs

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