Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 981 · 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) straight lines (b) wavy lines (c) dotted circles (d) little stars
2. 2.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) battery (b) LED (c) motor (d) capacitor
3. 3.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) bulb (c) switch (d) diode
4. 4.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the shorter line (c) neither line (d) the longer line
5. 5.Which drawing is the symbol for a diode? (a) a circle with A inside (b) many long-short pairs (c) a plain rectangle (d) triangle against a bar
6. 6.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
7. 7.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) bulb (b) resistor (c) wire (d) cell
8. 8.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) LED (b) switch (c) ammeter (d) bulb
9. 9.True or false: a circle with V inside is the symbol for a voltmeter. (a) True (b) False
10. 10.Which drawing is the symbol for an LED? (a) a long and a short line (b) a circle with an X in it (c) triangle, bar and arrows (d) a plain rectangle
11. 11.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) to make it colourful (c) quick and clear for all (d) symbols are heavier
12. 12.True or false: a circle with M inside is the symbol for a bulb. (a) False (b) True
13. 13.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) bulb (b) capacitor (c) switch (d) LED
14. 14.Which drawing is the symbol for an ammeter? (a) a straight line (b) a circle with A inside (c) a line lifted at a gap (d) a long and a short line
15. 15.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) wire (c) cell (d) bulb
16. 16.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) voltmeter (b) junction (c) LED (d) capacitor
17. 17.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) switch (b) resistor (c) voltmeter (d) diode
18. 18.True or false: a circle with M inside is the symbol for a motor. (a) True (b) False
19. 19.True or false: triangle, bar and arrows is the symbol for a battery. (a) True (b) False
20. 20.Which drawing is the symbol for a bulb? (a) two or more cell symbols (b) a long and a short line (c) triangle against a bar (d) a circle with a cross
21. 21.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) battery (c) voltmeter (d) diode
22. 22.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) voltmeter (b) LED (c) cell (d) battery
23. 23.True or false: many long-short pairs is the symbol for a resistor. (a) True (b) False
24. 24.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
25. 25.Which drawing is the symbol for a switch? (a) two or more cell symbols (b) two equal parallel lines (c) triangle, bar and arrows (d) a line lifted at a gap
26. 26.Which drawing is the symbol for a motor? (a) a circle with M inside (b) two or more cell symbols (c) many long-short pairs (d) a long and a short line
27. 27.True or false: a dot where wires meet is the symbol for an ammeter. (a) True (b) False
28. 28.True or false: triangle against a bar is the symbol for a cell. (a) False (b) True
29. 29.True or false: two or more cell symbols is the symbol for a bulb. (a) True (b) False
30. 30.Which drawing is the symbol for a junction? (a) one tall, one short bar (b) a circle with V inside (c) a dot where wires meet (d) a line lifted at a gap
31. 31.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
32. 32.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
33. 33.True or false: a straight line is the symbol for a voltmeter. (a) False (b) True
34. 34.True or false: a line lifted at a gap is the symbol for a voltmeter. (a) False (b) True
35. 35.True or false: a circle with M inside is the symbol for a switch. (a) False (b) True
36. 36.True or false: two equal parallel lines is the symbol for a voltmeter. (a) True (b) False
37. 37.Which drawing is the symbol for a cell? (a) many long-short pairs (b) a dot where wires meet (c) a long and a short line (d) triangle against a bar
38. 38.Which drawing is the symbol for a resistor? (a) many long-short pairs (b) a circle with V inside (c) a small empty box (d) a long and a short line
39. 39.Which drawing is the symbol for a battery? (a) two or more cell symbols (b) a circle with V inside (c) a circle with an X in it (d) a plain rectangle
40. 40.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) capacitor (b) LED (c) diode (d) resistor

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