Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 784 · 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 two or more cell symbols? (a) diode (b) bulb (c) battery (d) LED
2. 2.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) junction (b) voltmeter (c) bulb (d) switch
3. 3.Which drawing is the symbol for a wire? (a) two or more cell symbols (b) many long-short pairs (c) a circle with an X in it (d) a straight line
4. 4.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) the shorter line (c) neither line (d) both lines
5. 5.True or false: a circle with M inside is the symbol for a junction. (a) True (b) False
6. 6.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) switch (b) LED (c) ammeter (d) bulb
7. 7.True or false: a circle with M inside is the symbol for a motor. (a) True (b) False
8. 8.Which drawing is the symbol for an ammeter? (a) triangle, bar and arrows (b) a plain rectangle (c) a circle with A inside (d) a circle with an X in it
9. 9.Which drawing is the symbol for a battery? (a) a long and a short line (b) a circle with a cross (c) a circle with V inside (d) two or more cell symbols
10. 10.Which drawing is the symbol for a diode? (a) triangle against a bar (b) a circle with V inside (c) a circle with a cross (d) a plain rectangle
11. 11.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
12. 12.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) switch (c) cell (d) battery
13. 13.True or false: a small empty box is the symbol for a voltmeter. (a) True (b) False
14. 14.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) capacitor (b) diode (c) resistor (d) cell
15. 15.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) resistor (b) voltmeter (c) bulb (d) wire
16. 16.True or false: one tall, one short bar is the symbol for a switch. (a) False (b) True
17. 17.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
18. 18.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
19. 19.True or false: two equal parallel lines is the symbol for an ammeter. (a) False (b) True
20. 20.True or false: triangle, bar and arrows is the symbol for a battery. (a) True (b) False
21. 21.True or false: a line lifted at a gap is the symbol for an LED. (a) True (b) False
22. 22.✏️ In a circuit diagram, which part is drawn as a straight line? (a) resistor (b) junction (c) wire (d) motor
23. 23.True or false: a straight line is the symbol for a junction. (a) True (b) False
24. 24.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) wavy lines (c) little stars (d) straight lines
25. 25.Which drawing is the symbol for a bulb? (a) two equal parallel lines (b) a circle with A inside (c) one tall, one short bar (d) a circle with an X in it
26. 26.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) bulb (b) switch (c) cell (d) resistor
27. 27.Which drawing is the symbol for a resistor? (a) a plain rectangle (b) a circle with M inside (c) a circle with an X in it (d) two equal parallel lines
28. 28.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
29. 29.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) wire (b) battery (c) LED (d) capacitor
30. 30.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) to hide the circuit (c) symbols are heavier (d) quick and clear for all
31. 31.Which drawing is the symbol for a motor? (a) many long-short pairs (b) a dot where wires meet (c) a circle with V inside (d) a circle with M inside
32. 32.Which drawing is the symbol for a switch? (a) a circle with an X in it (b) a dot where wires meet (c) a line lifted at a gap (d) a long and a short line
33. 33.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) switch (b) battery (c) diode (d) ammeter
34. 34.True or false: triangle against a bar is the symbol for a cell. (a) True (b) False
35. 35.Which drawing is the symbol for a resistor? (a) a long and a short line (b) a circle with A inside (c) two equal parallel lines (d) a small empty box
36. 36.True or false: a straight line is the symbol for a voltmeter. (a) False (b) True
37. 37.True or false: a straight line is the symbol for a wire. (a) True (b) False
38. 38.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) voltmeter (b) bulb (c) switch (d) cell
39. 39.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) diode (b) resistor (c) LED (d) wire
40. 40.Which drawing is the symbol for an LED? (a) one tall, one short bar (b) triangle against a bar (c) two equal parallel lines (d) triangle, bar and arrows

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