Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 687 · 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) neither line (b) the shorter line (c) the longer line (d) both lines
2. 2.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) to hide the circuit (c) to make it colourful (d) symbols are heavier
3. 3.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) motor (b) resistor (c) battery (d) switch
4. 4.True or false: a circle with M inside is the symbol for a bulb. (a) True (b) False
5. 5.✏️ In a circuit diagram, which part is drawn as a straight line? (a) bulb (b) battery (c) capacitor (d) wire
6. 6.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) LED (b) motor (c) resistor (d) battery
7. 7.True or false: a straight line is the symbol for an LED. (a) True (b) False
8. 8.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) bulb (b) switch (c) voltmeter (d) capacitor
9. 9.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) a circle with a cross (c) a line lifted at a gap (d) a long and a short line
10. 10.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) cell (b) ammeter (c) bulb (d) battery
11. 11.True or false: a circle with A inside is the symbol for a junction. (a) True (b) False
12. 12.Which drawing is the symbol for a bulb? (a) a straight line (b) two or more cell symbols (c) a circle with an X in it (d) one tall, one short bar
13. 13.Which drawing is the symbol for a battery? (a) a small empty box (b) a circle with A inside (c) a dot where wires meet (d) two or more cell symbols
14. 14.True or false: one tall, one short bar is the symbol for a battery. (a) False (b) True
15. 15.Which drawing is the symbol for an LED? (a) a circle with a cross (b) one tall, one short bar (c) a long and a short line (d) triangle, bar and arrows
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 circle with A inside is the symbol for an ammeter. (a) True (b) False
18. 18.True or false: triangle, bar and arrows is the symbol for a cell. (a) False (b) True
19. 19.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) dotted circles (c) little stars (d) wavy lines
20. 20.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) battery (b) motor (c) resistor (d) bulb
21. 21.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) diode (b) wire (c) cell (d) bulb
22. 22.True or false: two or more cell symbols is the symbol for a diode. (a) False (b) True
23. 23.Which drawing is the symbol for a cell? (a) many long-short pairs (b) one tall, one short bar (c) a circle with A inside (d) a circle with V inside
24. 24.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) wire (b) LED (c) battery (d) ammeter
25. 25.True or false: a circle with an X in it is the symbol for a resistor. (a) False (b) True
26. 26.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) capacitor (b) wire (c) cell (d) bulb
27. 27.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) cell (b) capacitor (c) junction (d) LED
28. 28.Which drawing is the symbol for a voltmeter? (a) a plain rectangle (b) a circle with V inside (c) one tall, one short bar (d) two or more cell symbols
29. 29.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) voltmeter (b) motor (c) LED (d) wire
30. 30.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) bulb (b) voltmeter (c) wire (d) cell
31. 31.Which drawing is the symbol for a motor? (a) one tall, one short bar (b) a plain rectangle (c) two or more cell symbols (d) a circle with M inside
32. 32.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) bulb (b) motor (c) voltmeter (d) battery
33. 33.True or false: a circle with V inside is the symbol for a switch. (a) False (b) True
34. 34.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) switch (b) capacitor (c) junction (d) battery
35. 35.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
36. 36.Which drawing is the symbol for a resistor? (a) a plain rectangle (b) a circle with M inside (c) one tall, one short bar (d) triangle against a bar
37. 37.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) cell (c) diode (d) resistor
38. 38.True or false: a plain rectangle is the symbol for a cell. (a) False (b) True
39. 39.True or false: a circle with V inside is the symbol for a motor. (a) True (b) False
40. 40.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) switch (b) capacitor (c) voltmeter (d) LED

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