Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 301 · 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 circuit diagram, wires are usually drawn as … (a) little stars (b) dotted circles (c) wavy lines (d) straight lines
2. 2.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) battery (b) voltmeter (c) ammeter (d) diode
3. 3.Which drawing is the symbol for a junction? (a) a circle with M inside (b) a circle with V inside (c) a circle with a cross (d) a dot where wires meet
4. 4.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) the shorter line (c) neither line (d) both lines
5. 5.True or false: triangle against a bar is the symbol for a cell. (a) True (b) False
6. 6.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) voltmeter (b) diode (c) cell (d) bulb
7. 7.True or false: a circle with an X in it is the symbol for a battery. (a) True (b) False
8. 8.True or false: a circle with V inside is the symbol for a voltmeter. (a) True (b) False
9. 9.True or false: many long-short pairs is the symbol for a junction. (a) True (b) False
10. 10.Which drawing is the symbol for a wire? (a) a straight line (b) a plain rectangle (c) a circle with V inside (d) a circle with M inside
11. 11.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
12. 12.Which drawing is the symbol for a resistor? (a) a small empty box (b) triangle against a bar (c) a circle with a cross (d) a circle with an X in it
13. 13.Which drawing is the symbol for an ammeter? (a) one tall, one short bar (b) triangle against a bar (c) a small empty box (d) a circle with A inside
14. 14.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
15. 15.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) diode (b) LED (c) wire (d) cell
16. 16.True or false: triangle, bar and arrows is the symbol for a switch. (a) True (b) False
17. 17.Which drawing is the symbol for a bulb? (a) triangle, bar and arrows (b) one tall, one short bar (c) a circle with a cross (d) a line lifted at a gap
18. 18.Which drawing is the symbol for a voltmeter? (a) a circle with a cross (b) two equal parallel lines (c) two or more cell symbols (d) a circle with V inside
19. 19.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) switch (b) LED (c) junction (d) ammeter
20. 20.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) cell (b) battery (c) capacitor (d) wire
21. 21.✏️ 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
22. 22.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
23. 23.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) motor (c) diode (d) capacitor
24. 24.Which drawing is the symbol for an LED? (a) triangle, bar and arrows (b) a plain rectangle (c) a circle with M inside (d) a dot where wires meet
25. 25.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) resistor (b) motor (c) bulb (d) voltmeter
26. 26.Which drawing is the symbol for a switch? (a) two or more cell symbols (b) a circle with M inside (c) a line lifted at a gap (d) many long-short pairs
27. 27.True or false: a circle with M inside is the symbol for a motor. (a) True (b) False
28. 28.Which drawing is the symbol for a cell? (a) a circle with V inside (b) one tall, one short bar (c) triangle, bar and arrows (d) a line lifted at a gap
29. 29.Which drawing is the symbol for a battery? (a) a plain rectangle (b) many long-short pairs (c) a circle with M inside (d) two equal parallel lines
30. 30.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) switch (b) voltmeter (c) motor (d) battery
31. 31.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) capacitor (b) bulb (c) voltmeter (d) ammeter
32. 32.✏️ In a circuit diagram, which part is drawn as a straight line? (a) bulb (b) switch (c) wire (d) resistor
33. 33.True or false: a circle with V inside is the symbol for a battery. (a) True (b) False
34. 34.Which drawing is the symbol for a cell? (a) a straight line (b) two or more cell symbols (c) triangle, bar and arrows (d) a long and a short line
35. 35.True or false: triangle against a bar is the symbol for a switch. (a) False (b) True
36. 36.True or false: a line lifted at a gap is the symbol for a junction. (a) True (b) False
37. 37.Which drawing is the symbol for a battery? (a) a circle with a cross (b) two equal parallel lines (c) two or more cell symbols (d) a straight line
38. 38.True or false: a dot where wires meet is the symbol for a motor. (a) True (b) False
39. 39.True or false: a circle with A inside is the symbol for an ammeter. (a) True (b) False
40. 40.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) diode (b) junction (c) capacitor (d) switch

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