Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 726 · 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.✏️ 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
2. 2.Which drawing is the symbol for a junction? (a) a circle with A inside (b) a circle with a cross (c) triangle against a bar (d) a dot where wires meet
3. 3.Which drawing is the symbol for a voltmeter? (a) a circle with a cross (b) one tall, one short bar (c) two or more cell symbols (d) a circle with V inside
4. 4.Which drawing is the symbol for a bulb? (a) a straight line (b) a plain rectangle (c) many long-short pairs (d) a circle with an X in it
5. 5.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) both lines (c) the longer line (d) neither line
6. 6.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
7. 7.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) bulb (b) LED (c) resistor (d) battery
8. 8.Which drawing is the symbol for a motor? (a) a small empty box (b) many long-short pairs (c) a circle with V inside (d) a circle with M inside
9. 9.True or false: triangle, bar and arrows is the symbol for a diode. (a) False (b) True
10. 10.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) bulb (c) voltmeter (d) battery
11. 11.True or false: a line lifted at a gap is the symbol for a battery. (a) False (b) True
12. 12.True or false: a straight line is the symbol for a motor. (a) False (b) True
13. 13.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) junction (b) capacitor (c) voltmeter (d) ammeter
14. 14.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) straight lines (c) little stars (d) dotted circles
15. 15.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) junction (b) resistor (c) battery (d) cell
16. 16.True or false: a plain rectangle is the symbol for a diode. (a) True (b) False
17. 17.Which drawing is the symbol for a battery? (a) a circle with A inside (b) a circle with V inside (c) a straight line (d) two or more cell symbols
18. 18.Which drawing is the symbol for a wire? (a) a straight line (b) a dot where wires meet (c) a plain rectangle (d) many long-short pairs
19. 19.Which drawing is the symbol for a resistor? (a) one tall, one short bar (b) two or more cell symbols (c) a plain rectangle (d) triangle against a bar
20. 20.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) resistor (b) ammeter (c) cell (d) wire
21. 21.True or false: a straight line is the symbol for a wire. (a) True (b) False
22. 22.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
23. 23.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) ammeter (b) LED (c) motor (d) cell
24. 24.True or false: one tall, one short bar is the symbol for a diode. (a) False (b) True
25. 25.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) battery (c) voltmeter (d) resistor
26. 26.True or false: one tall, one short bar is the symbol for a resistor. (a) False (b) True
27. 27.Which drawing is the symbol for a capacitor? (a) triangle against a bar (b) a long and a short line (c) a circle with a cross (d) two equal parallel lines
28. 28.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) voltmeter (b) motor (c) junction (d) switch
29. 29.True or false: one tall, one short bar is the symbol for a battery. (a) True (b) False
30. 30.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) resistor (c) voltmeter (d) wire
31. 31.True or false: a circle with V inside is the symbol for a switch. (a) True (b) False
32. 32.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) diode (b) battery (c) LED (d) voltmeter
33. 33.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
34. 34.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
35. 35.True or false: a circle with M inside is the symbol for a diode. (a) True (b) False
36. 36.Which drawing is the symbol for a bulb? (a) a circle with a cross (b) triangle against a bar (c) two equal parallel lines (d) a small empty box
37. 37.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
38. 38.True or false: a small empty box is the symbol for a bulb. (a) False (b) True
39. 39.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) motor (b) diode (c) ammeter (d) capacitor
40. 40.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) diode (b) junction (c) bulb (d) wire

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