Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 76 · 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 one tall, one short bar? (a) switch (b) bulb (c) cell (d) resistor
2. 2.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) straight lines (c) dotted circles (d) little stars
3. 3.Which drawing is the symbol for a switch? (a) a straight line (b) triangle against a bar (c) many long-short pairs (d) a line lifted at a gap
4. 4.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) capacitor (c) switch (d) motor
5. 5.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) two or more cell symbols (c) a small empty box (d) a circle with M inside
6. 6.True or false: many long-short pairs is the symbol for a bulb. (a) True (b) False
7. 7.Which drawing is the symbol for a cell? (a) a circle with M inside (b) many long-short pairs (c) one tall, one short bar (d) a circle with A inside
8. 8.True or false: a straight line is the symbol for a capacitor. (a) True (b) False
9. 9.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) battery (b) resistor (c) switch (d) capacitor
10. 10.True or false: two or more cell symbols is the symbol for a junction. (a) True (b) False
11. 11.True or false: a circle with an X in it is the symbol for an LED. (a) True (b) False
12. 12.True or false: two equal parallel lines is the symbol for a motor. (a) True (b) False
13. 13.Which drawing is the symbol for a diode? (a) a small empty box (b) a long and a short line (c) triangle against a bar (d) a circle with V inside
14. 14.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) LED (b) voltmeter (c) resistor (d) bulb
15. 15.True or false: a line lifted at a gap is the symbol for a motor. (a) True (b) False
16. 16.Which drawing is the symbol for a motor? (a) one tall, one short bar (b) a plain rectangle (c) triangle, bar and arrows (d) a circle with M inside
17. 17.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
18. 18.True or false: a circle with a cross is the symbol for a wire. (a) True (b) False
19. 19.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) cell (b) junction (c) resistor (d) bulb
20. 20.Which drawing is the symbol for a cell? (a) a circle with V inside (b) a long and a short line (c) a dot where wires meet (d) triangle, bar and arrows
21. 21.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) motor (b) diode (c) capacitor (d) bulb
22. 22.✏️ In a circuit diagram, which part is drawn as a straight line? (a) wire (b) switch (c) resistor (d) ammeter
23. 23.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
24. 24.Which drawing is the symbol for a bulb? (a) a circle with a cross (b) a plain rectangle (c) triangle against a bar (d) a straight line
25. 25.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) symbols are heavier (c) to hide the circuit (d) to make it colourful
26. 26.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) motor (b) diode (c) resistor (d) bulb
27. 27.True or false: a small empty box is the symbol for a motor. (a) False (b) True
28. 28.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) diode (b) LED (c) battery (d) ammeter
29. 29.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) both lines (c) neither line (d) the longer line
30. 30.Which drawing is the symbol for a battery? (a) a circle with A inside (b) two or more cell symbols (c) one tall, one short bar (d) a small empty box
31. 31.True or false: many long-short pairs is the symbol for a switch. (a) False (b) True
32. 32.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
33. 33.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) cell (b) wire (c) capacitor (d) switch
34. 34.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) two equal parallel lines (c) a plain rectangle (d) a long and a short line
35. 35.True or false: a small empty box is the symbol for an ammeter. (a) False (b) True
36. 36.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) ammeter (b) motor (c) bulb (d) resistor
37. 37.True or false: a straight line is the symbol for a motor. (a) True (b) False
38. 38.True or false: triangle, bar and arrows is the symbol for an ammeter. (a) False (b) True
39. 39.Which drawing is the symbol for a bulb? (a) a small empty box (b) a circle with an X in it (c) a dot where wires meet (d) triangle, bar and arrows
40. 40.True or false: a straight line is the symbol for a cell. (a) False (b) True

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