Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 250 · 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 a long and a short line? (a) LED (b) ammeter (c) cell (d) bulb
2. 2.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) straight lines (c) little stars (d) wavy lines
3. 3.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) junction (b) capacitor (c) switch (d) ammeter
4. 4.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) motor (c) cell (d) resistor
5. 5.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) a long and a short line (c) two or more cell symbols (d) a dot where wires meet
6. 6.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the longer line (c) neither line (d) the shorter line
7. 7.True or false: triangle against a bar is the symbol for a diode. (a) True (b) False
8. 8.True or false: a dot where wires meet is the symbol for a wire. (a) False (b) True
9. 9.True or false: a plain rectangle is the symbol for a switch. (a) True (b) False
10. 10.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) battery (b) switch (c) junction (d) cell
11. 11.✏️ 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
12. 12.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) bulb (b) resistor (c) motor (d) capacitor
13. 13.True or false: a line lifted at a gap is the symbol for a battery. (a) True (b) False
14. 14.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) many long-short pairs (c) a circle with an X in it (d) a long and a short line
15. 15.Which drawing is the symbol for a bulb? (a) one tall, one short bar (b) a circle with an X in it (c) a circle with M inside (d) two or more cell symbols
16. 16.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
17. 17.True or false: a dot where wires meet is the symbol for a bulb. (a) False (b) True
18. 18.True or false: many long-short pairs is the symbol for a voltmeter. (a) True (b) False
19. 19.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) wire (b) ammeter (c) diode (d) voltmeter
20. 20.Which drawing is the symbol for a cell? (a) a straight line (b) one tall, one short bar (c) many long-short pairs (d) a dot where wires meet
21. 21.Which drawing is the symbol for a battery? (a) a straight line (b) a plain rectangle (c) triangle, bar and arrows (d) many long-short pairs
22. 22.Which drawing is the symbol for a junction? (a) triangle, bar and arrows (b) a circle with M inside (c) a dot where wires meet (d) a circle with V inside
23. 23.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) voltmeter (b) cell (c) resistor (d) battery
24. 24.Which drawing is the symbol for a diode? (a) triangle against a bar (b) a plain rectangle (c) a line lifted at a gap (d) a long and a short line
25. 25.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) switch (b) bulb (c) diode (d) motor
26. 26.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) diode (b) bulb (c) cell (d) ammeter
27. 27.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) capacitor (b) resistor (c) voltmeter (d) LED
28. 28.Which drawing is the symbol for a cell? (a) many long-short pairs (b) a long and a short line (c) a circle with M inside (d) a circle with an X in it
29. 29.True or false: a dot where wires meet is the symbol for a switch. (a) True (b) False
30. 30.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) cell (b) capacitor (c) diode (d) bulb
31. 31.True or false: a straight line is the symbol for a voltmeter. (a) True (b) False
32. 32.Which drawing is the symbol for a wire? (a) a small empty box (b) a straight line (c) a circle with M inside (d) one tall, one short bar
33. 33.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) bulb (b) wire (c) resistor (d) battery
34. 34.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
35. 35.✏️ In a circuit diagram, which part is drawn as a straight line? (a) motor (b) bulb (c) ammeter (d) wire
36. 36.True or false: a circle with a cross is the symbol for a battery. (a) True (b) False
37. 37.True or false: a circle with a cross is the symbol for a switch. (a) True (b) False
38. 38.True or false: a long and a short line is the symbol for a switch. (a) True (b) False
39. 39.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
40. 40.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) cell (b) voltmeter (c) switch (d) LED

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