Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 235 · 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.Which drawing is the symbol for a bulb? (a) a circle with an X in it (b) two equal parallel lines (c) many long-short pairs (d) a straight line
2. 2.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) to make it colourful (c) symbols are heavier (d) quick and clear for all
3. 3.True or false: a plain rectangle is the symbol for a voltmeter. (a) True (b) False
4. 4.True or false: two equal parallel lines is the symbol for a resistor. (a) False (b) True
5. 5.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) diode (b) junction (c) battery (d) cell
6. 6.Which drawing is the symbol for an LED? (a) two or more cell symbols (b) a circle with V inside (c) a dot where wires meet (d) triangle, bar and arrows
7. 7.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) battery (b) resistor (c) cell (d) wire
8. 8.Which drawing is the symbol for a diode? (a) two or more cell symbols (b) many long-short pairs (c) a plain rectangle (d) triangle against a bar
9. 9.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) straight lines (c) little stars (d) dotted circles
10. 10.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) bulb (b) battery (c) diode (d) cell
11. 11.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) capacitor (b) cell (c) resistor (d) battery
12. 12.✏️ In a circuit diagram, which part is drawn as a straight line? (a) cell (b) diode (c) bulb (d) wire
13. 13.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) junction (b) bulb (c) capacitor (d) battery
14. 14.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) diode (b) voltmeter (c) LED (d) battery
15. 15.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) both lines (c) the longer line (d) neither line
16. 16.Which drawing is the symbol for a wire? (a) a straight line (b) triangle against a bar (c) a circle with an X in it (d) a long and a short line
17. 17.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
18. 18.Which drawing is the symbol for a resistor? (a) a small empty box (b) many long-short pairs (c) a straight line (d) one tall, one short bar
19. 19.True or false: triangle against a bar is the symbol for a wire. (a) False (b) True
20. 20.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) motor (b) capacitor (c) junction (d) resistor
21. 21.Which drawing is the symbol for a cell? (a) a circle with M inside (b) one tall, one short bar (c) a circle with V inside (d) a plain rectangle
22. 22.Which drawing is the symbol for a junction? (a) a dot where wires meet (b) many long-short pairs (c) triangle against a bar (d) a circle with V inside
23. 23.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) motor (b) LED (c) junction (d) resistor
24. 24.True or false: a circle with an X in it is the symbol for a switch. (a) False (b) True
25. 25.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) LED (b) battery (c) bulb (d) capacitor
26. 26.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) capacitor (b) wire (c) switch (d) LED
27. 27.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
28. 28.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) wire (b) capacitor (c) LED (d) bulb
29. 29.True or false: a circle with A inside is the symbol for an ammeter. (a) True (b) False
30. 30.Which drawing is the symbol for a motor? (a) a small empty box (b) a line lifted at a gap (c) a circle with M inside (d) a circle with a cross
31. 31.True or false: a circle with M inside is the symbol for a voltmeter. (a) True (b) False
32. 32.True or false: a circle with an X in it is the symbol for a battery. (a) False (b) True
33. 33.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) a circle with V inside (c) a long and a short line (d) a circle with an X in it
34. 34.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) voltmeter (b) ammeter (c) LED (d) capacitor
35. 35.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) switch (b) ammeter (c) motor (d) bulb
36. 36.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
37. 37.True or false: a straight line is the symbol for a resistor. (a) False (b) True
38. 38.True or false: many long-short pairs is the symbol for a resistor. (a) True (b) False
39. 39.True or false: two equal parallel lines is the symbol for a battery. (a) True (b) False
40. 40.Which drawing is the symbol for a cell? (a) a long and a short line (b) a straight line (c) many long-short pairs (d) a circle with an X in it

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