Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 189 · 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, which part is drawn as two equal parallel lines? (a) voltmeter (b) bulb (c) capacitor (d) cell
2. 2.Which drawing is the symbol for a bulb? (a) a circle with M inside (b) a circle with A inside (c) a plain rectangle (d) a circle with an X in it
3. 3.✏️ In a circuit diagram, which part is drawn as a straight line? (a) LED (b) wire (c) battery (d) voltmeter
4. 4.Which drawing is the symbol for a resistor? (a) a circle with M inside (b) triangle against a bar (c) a small empty box (d) two or more cell symbols
5. 5.True or false: a circle with A inside is the symbol for an ammeter. (a) True (b) False
6. 6.Which drawing is the symbol for a wire? (a) a straight line (b) triangle against a bar (c) a dot where wires meet (d) one tall, one short bar
7. 7.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) cell (c) junction (d) motor
8. 8.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) the longer line (c) neither line (d) both lines
9. 9.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) voltmeter (b) motor (c) LED (d) bulb
10. 10.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) to hide the circuit (c) symbols are heavier (d) quick and clear for all
11. 11.True or false: triangle against a bar is the symbol for a diode. (a) True (b) False
12. 12.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
13. 13.Which drawing is the symbol for a capacitor? (a) a small empty box (b) two equal parallel lines (c) a circle with A inside (d) triangle against a bar
14. 14.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) resistor (b) junction (c) bulb (d) voltmeter
15. 15.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
16. 16.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) diode (b) capacitor (c) voltmeter (d) cell
17. 17.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
18. 18.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) dotted circles (c) straight lines (d) wavy lines
19. 19.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
20. 20.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) capacitor (b) switch (c) ammeter (d) wire
21. 21.True or false: a circle with M inside is the symbol for a junction. (a) True (b) False
22. 22.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) bulb (b) diode (c) ammeter (d) motor
23. 23.True or false: a circle with a cross is the symbol for a junction. (a) False (b) True
24. 24.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) LED (b) switch (c) capacitor (d) resistor
25. 25.True or false: many long-short pairs is the symbol for a resistor. (a) True (b) False
26. 26.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) ammeter (b) wire (c) motor (d) battery
27. 27.True or false: triangle, bar and arrows is the symbol for a battery. (a) False (b) True
28. 28.True or false: a circle with M inside is the symbol for a bulb. (a) False (b) True
29. 29.Which drawing is the symbol for a diode? (a) a small empty box (b) triangle against a bar (c) two equal parallel lines (d) a circle with M inside
30. 30.Which drawing is the symbol for a battery? (a) a straight line (b) a plain rectangle (c) two or more cell symbols (d) a small empty box
31. 31.True or false: a plain rectangle is the symbol for an ammeter. (a) True (b) False
32. 32.True or false: two or more cell symbols is the symbol for a wire. (a) True (b) False
33. 33.Which drawing is the symbol for a switch? (a) triangle, bar and arrows (b) a circle with an X in it (c) a line lifted at a gap (d) many long-short pairs
34. 34.True or false: a circle with V inside is the symbol for a voltmeter. (a) True (b) False
35. 35.True or false: a circle with an X in it is the symbol for a capacitor. (a) True (b) False
36. 36.Which drawing is the symbol for a junction? (a) two equal parallel lines (b) a dot where wires meet (c) a circle with an X in it (d) a line lifted at a gap
37. 37.True or false: a circle with M inside is the symbol for a resistor. (a) True (b) False
38. 38.Which drawing is the symbol for an ammeter? (a) a circle with M inside (b) a circle with A inside (c) triangle, bar and arrows (d) many long-short pairs
39. 39.True or false: one tall, one short bar is the symbol for an ammeter. (a) True (b) False
40. 40.Which drawing is the symbol for a resistor? (a) a plain rectangle (b) a straight line (c) a line lifted at a gap (d) a circle with a cross

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