Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 334 · 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 cell symbol, which line is the + terminal? (a) both lines (b) neither line (c) the longer line (d) the shorter line
2. 2.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) bulb (b) motor (c) battery (d) ammeter
3. 3.Which drawing is the symbol for an ammeter? (a) triangle against a bar (b) a circle with M inside (c) a circle with A inside (d) a straight line
4. 4.Which drawing is the symbol for a cell? (a) a circle with M inside (b) a circle with a cross (c) a circle with an X in it (d) one tall, one short bar
5. 5.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) motor (b) diode (c) bulb (d) battery
6. 6.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) bulb (b) cell (c) diode (d) battery
7. 7.Which drawing is the symbol for a motor? (a) a circle with an X in it (b) two or more cell symbols (c) a circle with M inside (d) a circle with V inside
8. 8.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) switch (b) cell (c) resistor (d) capacitor
9. 9.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) LED (b) motor (c) cell (d) diode
10. 10.Which drawing is the symbol for a diode? (a) a circle with V inside (b) a circle with an X in it (c) a circle with a cross (d) triangle against a bar
11. 11.✏️ In a circuit diagram, which part is drawn as a straight line? (a) battery (b) voltmeter (c) junction (d) wire
12. 12.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) switch (b) bulb (c) diode (d) ammeter
13. 13.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) resistor (b) diode (c) motor (d) voltmeter
14. 14.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) to make it colourful (c) symbols are heavier (d) to hide the circuit
15. 15.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) wavy lines (c) dotted circles (d) straight lines
16. 16.True or false: a small empty box is the symbol for a voltmeter. (a) True (b) False
17. 17.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) motor (b) switch (c) bulb (d) wire
18. 18.Which drawing is the symbol for a capacitor? (a) a circle with an X in it (b) two or more cell symbols (c) triangle, bar and arrows (d) two equal parallel lines
19. 19.Which drawing is the symbol for a resistor? (a) a plain rectangle (b) triangle, bar and arrows (c) a circle with M inside (d) a circle with A inside
20. 20.Which drawing is the symbol for a bulb? (a) a straight line (b) triangle against a bar (c) a circle with an X in it (d) a dot where wires meet
21. 21.Which drawing is the symbol for a wire? (a) a straight line (b) one tall, one short bar (c) a line lifted at a gap (d) a dot where wires meet
22. 22.True or false: many long-short pairs is the symbol for a bulb. (a) False (b) True
23. 23.Which drawing is the symbol for a switch? (a) a circle with an X in it (b) a circle with V inside (c) a straight line (d) a line lifted at a gap
24. 24.True or false: a circle with a cross is the symbol for a diode. (a) False (b) True
25. 25.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) resistor (b) diode (c) junction (d) switch
26. 26.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
27. 27.True or false: a plain rectangle is the symbol for a bulb. (a) True (b) False
28. 28.Which drawing is the symbol for a battery? (a) many long-short pairs (b) a straight line (c) a small empty box (d) one tall, one short bar
29. 29.True or false: a circle with A inside is the symbol for a cell. (a) False (b) True
30. 30.True or false: a circle with M inside is the symbol for a motor. (a) True (b) False
31. 31.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) LED (b) bulb (c) ammeter (d) voltmeter
32. 32.True or false: a long and a short line is the symbol for an ammeter. (a) False (b) True
33. 33.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) ammeter (b) voltmeter (c) junction (d) bulb
34. 34.True or false: two or more cell symbols is the symbol for a diode. (a) False (b) True
35. 35.True or false: two equal parallel lines is the symbol for a motor. (a) True (b) False
36. 36.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) bulb (b) cell (c) motor (d) capacitor
37. 37.True or false: a dot where wires meet is the symbol for a switch. (a) True (b) False
38. 38.True or false: a circle with a cross is the symbol for a voltmeter. (a) True (b) False
39. 39.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
40. 40.Which drawing is the symbol for an LED? (a) a dot where wires meet (b) triangle against a bar (c) two or more cell symbols (d) triangle, bar and arrows

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