Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 603 · 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 resistor? (a) a long and a short line (b) a line lifted at a gap (c) one tall, one short bar (d) a plain rectangle
2. 2.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) straight lines (c) dotted circles (d) wavy lines
3. 3.True or false: a circle with V inside is the symbol for a voltmeter. (a) True (b) False
4. 4.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) bulb (b) voltmeter (c) capacitor (d) cell
5. 5.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) bulb (b) switch (c) junction (d) capacitor
6. 6.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) motor (b) diode (c) bulb (d) resistor
7. 7.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
8. 8.Which drawing is the symbol for a cell? (a) a circle with A inside (b) a long and a short line (c) a line lifted at a gap (d) a straight line
9. 9.Which drawing is the symbol for an ammeter? (a) a plain rectangle (b) a circle with an X in it (c) a dot where wires meet (d) a circle with A inside
10. 10.✏️ 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
11. 11.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) ammeter (b) battery (c) bulb (d) diode
12. 12.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) motor (c) junction (d) battery
13. 13.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
14. 14.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) resistor (b) ammeter (c) junction (d) LED
15. 15.True or false: a dot where wires meet is the symbol for a cell. (a) True (b) False
16. 16.Which drawing is the symbol for a bulb? (a) two or more cell symbols (b) a circle with a cross (c) two equal parallel lines (d) one tall, one short bar
17. 17.Which drawing is the symbol for an LED? (a) one tall, one short bar (b) triangle, bar and arrows (c) a straight line (d) a long and a short line
18. 18.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) the longer line (c) both lines (d) neither line
19. 19.Which drawing is the symbol for a wire? (a) a straight line (b) a dot where wires meet (c) a plain rectangle (d) many long-short pairs
20. 20.Which drawing is the symbol for a capacitor? (a) a circle with an X in it (b) a circle with M inside (c) many long-short pairs (d) two equal parallel lines
21. 21.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
22. 22.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) switch (c) voltmeter (d) diode
23. 23.Which drawing is the symbol for a voltmeter? (a) a circle with A inside (b) one tall, one short bar (c) a circle with V inside (d) many long-short pairs
24. 24.True or false: a circle with M inside is the symbol for a motor. (a) True (b) False
25. 25.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) battery (b) resistor (c) bulb (d) capacitor
26. 26.True or false: a plain rectangle is the symbol for a switch. (a) False (b) True
27. 27.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) battery (b) switch (c) resistor (d) capacitor
28. 28.True or false: a circle with an X in it is the symbol for a switch. (a) False (b) True
29. 29.True or false: a circle with M inside is the symbol for a voltmeter. (a) True (b) False
30. 30.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
31. 31.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
32. 32.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) resistor (b) capacitor (c) cell (d) ammeter
33. 33.True or false: a dot where wires meet is the symbol for a diode. (a) True (b) False
34. 34.✏️ In a circuit diagram, which part is drawn as a straight line? (a) diode (b) battery (c) voltmeter (d) wire
35. 35.Which drawing is the symbol for a battery? (a) two or more cell symbols (b) triangle against a bar (c) two equal parallel lines (d) a circle with V inside
36. 36.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) battery (b) motor (c) cell (d) capacitor
37. 37.Which drawing is the symbol for a junction? (a) a dot where wires meet (b) a circle with an X in it (c) a circle with a cross (d) many long-short pairs
38. 38.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
39. 39.True or false: two or more cell symbols is the symbol for a motor. (a) True (b) False
40. 40.Which drawing is the symbol for a cell? (a) one tall, one short bar (b) a dot where wires meet (c) two equal parallel lines (d) triangle against a bar

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