Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 417 · 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.Which drawing is the symbol for a voltmeter? (a) a long and a short line (b) triangle, bar and arrows (c) a circle with V inside (d) a circle with M inside
2. 2.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
3. 3.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) neither line (c) the shorter line (d) the longer line
4. 4.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) straight lines (c) dotted circles (d) wavy lines
5. 5.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) motor (b) ammeter (c) diode (d) cell
6. 6.✏️ In a circuit diagram, which part is drawn as a straight line? (a) bulb (b) junction (c) wire (d) cell
7. 7.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) battery (b) ammeter (c) bulb (d) capacitor
8. 8.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) voltmeter (b) junction (c) bulb (d) cell
9. 9.Which drawing is the symbol for a motor? (a) a straight line (b) two or more cell symbols (c) a small empty box (d) a circle with M inside
10. 10.Which drawing is the symbol for a cell? (a) one tall, one short bar (b) a small empty box (c) two or more cell symbols (d) triangle, bar and arrows
11. 11.Which drawing is the symbol for a capacitor? (a) a dot where wires meet (b) two equal parallel lines (c) one tall, one short bar (d) many long-short pairs
12. 12.Which drawing is the symbol for an LED? (a) two or more cell symbols (b) a circle with V inside (c) a long and a short line (d) triangle, bar and arrows
13. 13.Which drawing is the symbol for a switch? (a) triangle, bar and arrows (b) a line lifted at a gap (c) a small empty box (d) many long-short pairs
14. 14.Which drawing is the symbol for an ammeter? (a) a straight line (b) a circle with a cross (c) a line lifted at a gap (d) a circle with A inside
15. 15.Which drawing is the symbol for a wire? (a) a circle with A inside (b) a circle with M inside (c) a long and a short line (d) a straight line
16. 16.True or false: a dot where wires meet is the symbol for an ammeter. (a) True (b) False
17. 17.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) resistor (c) motor (d) junction
18. 18.True or false: triangle, bar and arrows is the symbol for a cell. (a) False (b) True
19. 19.Which drawing is the symbol for a junction? (a) two equal parallel lines (b) a dot where wires meet (c) a small empty box (d) two or more cell symbols
20. 20.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) capacitor (b) bulb (c) voltmeter (d) battery
21. 21.Which drawing is the symbol for a resistor? (a) a straight line (b) a circle with M inside (c) two or more cell symbols (d) a small empty box
22. 22.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) quick and clear for all (c) symbols are heavier (d) to hide the circuit
23. 23.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
24. 24.True or false: a dot where wires meet is the symbol for a battery. (a) False (b) True
25. 25.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) resistor (b) switch (c) bulb (d) diode
26. 26.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
27. 27.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
28. 28.True or false: a dot where wires meet is the symbol for a junction. (a) True (b) False
29. 29.True or false: a circle with an X in it is the symbol for an LED. (a) True (b) False
30. 30.True or false: triangle against a bar is the symbol for a switch. (a) False (b) True
31. 31.True or false: two equal parallel lines is the symbol for a cell. (a) True (b) False
32. 32.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) bulb (b) switch (c) LED (d) cell
33. 33.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
34. 34.Which drawing is the symbol for a battery? (a) a circle with M inside (b) two or more cell symbols (c) a straight line (d) a long and a short line
35. 35.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
36. 36.Which drawing is the symbol for a diode? (a) a circle with a cross (b) two or more cell symbols (c) many long-short pairs (d) triangle against a bar
37. 37.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) diode (b) resistor (c) ammeter (d) switch
38. 38.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) ammeter (b) switch (c) motor (d) junction
39. 39.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) motor (b) capacitor (c) bulb (d) wire
40. 40.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) voltmeter (b) LED (c) battery (d) capacitor

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