Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 214 · 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.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
2. 2.Which drawing is the symbol for a switch? (a) one tall, one short bar (b) a line lifted at a gap (c) a plain rectangle (d) a small empty box
3. 3.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) cell (b) ammeter (c) switch (d) LED
4. 4.Which drawing is the symbol for a motor? (a) a circle with A inside (b) a circle with a cross (c) a circle with M inside (d) triangle against a bar
5. 5.Which drawing is the symbol for a voltmeter? (a) a plain rectangle (b) a circle with M inside (c) a circle with A inside (d) a circle with V inside
6. 6.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) LED (b) cell (c) motor (d) voltmeter
7. 7.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) wavy lines (c) straight lines (d) little stars
8. 8.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) motor (b) junction (c) LED (d) battery
9. 9.✏️ In a circuit diagram, which part is drawn as a straight line? (a) battery (b) wire (c) diode (d) bulb
10. 10.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the shorter line (c) the longer line (d) neither line
11. 11.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) cell (b) battery (c) voltmeter (d) junction
12. 12.Which drawing is the symbol for a wire? (a) two or more cell symbols (b) many long-short pairs (c) one tall, one short bar (d) a straight line
13. 13.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) voltmeter (b) ammeter (c) capacitor (d) bulb
14. 14.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) to make it colourful (c) to hide the circuit (d) quick and clear for all
15. 15.Which drawing is the symbol for a capacitor? (a) a dot where wires meet (b) a circle with A inside (c) a circle with a cross (d) two equal parallel lines
16. 16.Which drawing is the symbol for a battery? (a) two or more cell symbols (b) one tall, one short bar (c) a circle with an X in it (d) a circle with V inside
17. 17.True or false: a straight line is the symbol for a voltmeter. (a) True (b) False
18. 18.Which drawing is the symbol for a diode? (a) a circle with an X in it (b) many long-short pairs (c) a line lifted at a gap (d) triangle against a bar
19. 19.Which drawing is the symbol for an LED? (a) many long-short pairs (b) a straight line (c) a plain rectangle (d) triangle, bar and arrows
20. 20.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
21. 21.True or false: two equal parallel lines is the symbol for an LED. (a) False (b) True
22. 22.Which drawing is the symbol for a bulb? (a) two or more cell symbols (b) one tall, one short bar (c) a circle with an X in it (d) a line lifted at a gap
23. 23.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
24. 24.Which drawing is the symbol for a cell? (a) a straight line (b) a long and a short line (c) a line lifted at a gap (d) a circle with M inside
25. 25.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
26. 26.Which drawing is the symbol for a bulb? (a) a circle with a cross (b) a long and a short line (c) a straight line (d) a small empty box
27. 27.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) cell (c) voltmeter (d) bulb
28. 28.Which drawing is the symbol for a battery? (a) a circle with A inside (b) one tall, one short bar (c) many long-short pairs (d) a straight line
29. 29.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) ammeter (c) voltmeter (d) resistor
30. 30.True or false: a circle with a cross is the symbol for a motor. (a) False (b) True
31. 31.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
32. 32.True or false: a circle with M inside is the symbol for an LED. (a) True (b) False
33. 33.True or false: a line lifted at a gap is the symbol for a cell. (a) True (b) False
34. 34.True or false: one tall, one short bar is the symbol for a switch. (a) False (b) True
35. 35.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) resistor (b) voltmeter (c) ammeter (d) bulb
36. 36.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) resistor (b) cell (c) ammeter (d) diode
37. 37.True or false: a line lifted at a gap is the symbol for a diode. (a) True (b) False
38. 38.Which drawing is the symbol for a junction? (a) a long and a short line (b) a circle with A inside (c) a circle with a cross (d) a dot where wires meet
39. 39.True or false: many long-short pairs is the symbol for a junction. (a) True (b) False
40. 40.True or false: a straight line is the symbol for a motor. (a) False (b) True

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