Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 154 · 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 an LED? (a) a circle with M inside (b) triangle, bar and arrows (c) a line lifted at a gap (d) two or more cell symbols
2. 2.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) the shorter line (c) both lines (d) the longer line
3. 3.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) bulb (b) battery (c) diode (d) cell
4. 4.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) motor (b) junction (c) battery (d) voltmeter
5. 5.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) motor (b) cell (c) LED (d) resistor
6. 6.Which drawing is the symbol for a diode? (a) a straight line (b) triangle, bar and arrows (c) a circle with A inside (d) triangle against a bar
7. 7.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
8. 8.Which drawing is the symbol for a capacitor? (a) a straight line (b) a small empty box (c) two equal parallel lines (d) triangle against a bar
9. 9.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) to make it colourful (c) quick and clear for all (d) to hide the circuit
10. 10.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) bulb (b) voltmeter (c) diode (d) capacitor
11. 11.True or false: two equal parallel lines is the symbol for a junction. (a) False (b) True
12. 12.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
13. 13.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) voltmeter (b) bulb (c) cell (d) switch
14. 14.Which drawing is the symbol for a cell? (a) triangle against a bar (b) a circle with A inside (c) one tall, one short bar (d) a circle with V inside
15. 15.True or false: two or more cell symbols is the symbol for a junction. (a) False (b) True
16. 16.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) ammeter (b) diode (c) wire (d) cell
17. 17.Which drawing is the symbol for a motor? (a) a dot where wires meet (b) a circle with a cross (c) triangle, bar and arrows (d) a circle with M inside
18. 18.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) bulb (c) junction (d) motor
19. 19.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
20. 20.True or false: a long and a short line is the symbol for a voltmeter. (a) False (b) True
21. 21.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
22. 22.True or false: a circle with a cross is the symbol for a junction. (a) True (b) False
23. 23.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) capacitor (b) cell (c) voltmeter (d) ammeter
24. 24.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) switch (b) voltmeter (c) resistor (d) battery
25. 25.Which drawing is the symbol for a bulb? (a) a circle with an X in it (b) many long-short pairs (c) a circle with A inside (d) two equal parallel lines
26. 26.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
27. 27.True or false: a straight line is the symbol for a bulb. (a) False (b) True
28. 28.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) little stars (c) straight lines (d) dotted circles
29. 29.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) motor (b) capacitor (c) voltmeter (d) LED
30. 30.Which drawing is the symbol for a junction? (a) many long-short pairs (b) a line lifted at a gap (c) a circle with an X in it (d) a dot where wires meet
31. 31.True or false: one tall, one short bar is the symbol for a motor. (a) False (b) True
32. 32.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) ammeter (b) motor (c) diode (d) bulb
33. 33.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
34. 34.True or false: a line lifted at a gap is the symbol for a voltmeter. (a) True (b) False
35. 35.Which drawing is the symbol for a voltmeter? (a) two equal parallel lines (b) one tall, one short bar (c) a dot where wires meet (d) a circle with V inside
36. 36.True or false: a circle with A inside is the symbol for a voltmeter. (a) True (b) False
37. 37.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) cell (b) junction (c) resistor (d) diode
38. 38.Which drawing is the symbol for a wire? (a) a dot where wires meet (b) two equal parallel lines (c) a straight line (d) a circle with M inside
39. 39.Which drawing is the symbol for a switch? (a) triangle, bar and arrows (b) a circle with an X in it (c) many long-short pairs (d) a line lifted at a gap
40. 40.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) resistor (b) ammeter (c) bulb (d) diode

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