Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 576 · 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 a circle with an X in it? (a) LED (b) ammeter (c) capacitor (d) bulb
2. 2.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) ammeter (b) battery (c) motor (d) bulb
3. 3.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) voltmeter (b) ammeter (c) LED (d) diode
4. 4.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
5. 5.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) ammeter (b) diode (c) junction (d) battery
6. 6.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) resistor (b) ammeter (c) LED (d) capacitor
7. 7.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) motor (b) wire (c) capacitor (d) cell
8. 8.Which drawing is the symbol for a voltmeter? (a) a circle with A inside (b) one tall, one short bar (c) a circle with V inside (d) triangle, bar and arrows
9. 9.Which drawing is the symbol for a bulb? (a) a long and a short line (b) a circle with a cross (c) two or more cell symbols (d) two equal parallel lines
10. 10.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) to hide the circuit (c) to make it colourful (d) quick and clear for all
11. 11.Which drawing is the symbol for a capacitor? (a) triangle, bar and arrows (b) a plain rectangle (c) two equal parallel lines (d) a long and a short line
12. 12.Which drawing is the symbol for a diode? (a) triangle against a bar (b) triangle, bar and arrows (c) many long-short pairs (d) a plain rectangle
13. 13.Which drawing is the symbol for a battery? (a) a plain rectangle (b) two equal parallel lines (c) many long-short pairs (d) a circle with A inside
14. 14.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) the longer line (c) neither line (d) both lines
15. 15.Which drawing is the symbol for a wire? (a) a circle with an X in it (b) a circle with a cross (c) a straight line (d) one tall, one short bar
16. 16.True or false: a circle with V inside is the symbol for a voltmeter. (a) True (b) False
17. 17.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
18. 18.Which drawing is the symbol for a cell? (a) many long-short pairs (b) a circle with M inside (c) a long and a short line (d) a circle with a cross
19. 19.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) wavy lines (c) straight lines (d) dotted circles
20. 20.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
21. 21.True or false: a straight line is the symbol for a battery. (a) True (b) False
22. 22.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) battery (b) switch (c) capacitor (d) bulb
23. 23.Which drawing is the symbol for a switch? (a) a straight line (b) a circle with M inside (c) a small empty box (d) a line lifted at a gap
24. 24.Which drawing is the symbol for a resistor? (a) a circle with an X in it (b) a circle with A inside (c) a circle with a cross (d) a small empty box
25. 25.True or false: triangle against a bar is the symbol for an ammeter. (a) False (b) True
26. 26.True or false: a circle with an X in it is the symbol for a wire. (a) True (b) False
27. 27.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) junction (b) diode (c) capacitor (d) battery
28. 28.True or false: one tall, one short bar is the symbol for a resistor. (a) False (b) True
29. 29.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
30. 30.Which drawing is the symbol for a junction? (a) a circle with V inside (b) triangle against a bar (c) many long-short pairs (d) a dot where wires meet
31. 31.True or false: triangle, bar and arrows is the symbol for a wire. (a) True (b) False
32. 32.True or false: a circle with M inside is the symbol for a motor. (a) True (b) False
33. 33.Which drawing is the symbol for a battery? (a) a small empty box (b) a line lifted at a gap (c) two or more cell symbols (d) a long and a short line
34. 34.Which drawing is the symbol for a motor? (a) a circle with M inside (b) a circle with V inside (c) a long and a short line (d) a small empty box
35. 35.True or false: a circle with an X in it is the symbol for a switch. (a) True (b) False
36. 36.✏️ In a circuit diagram, which part is drawn as a straight line? (a) battery (b) wire (c) bulb (d) voltmeter
37. 37.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
38. 38.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) capacitor (b) battery (c) motor (d) bulb
39. 39.True or false: triangle against a bar is the symbol for a motor. (a) False (b) True
40. 40.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) resistor (b) cell (c) capacitor (d) wire

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