Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 630 · 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.True or false: a circle with a cross is the symbol for a switch. (a) True (b) False
2. 2.True or false: a straight line is the symbol for a capacitor. (a) True (b) False
3. 3.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) motor (c) ammeter (d) LED
4. 4.Which drawing is the symbol for a voltmeter? (a) two or more cell symbols (b) a circle with V inside (c) a straight line (d) two equal parallel lines
5. 5.True or false: a circle with a cross is the symbol for a capacitor. (a) False (b) True
6. 6.True or false: a straight line is the symbol for a cell. (a) False (b) True
7. 7.True or false: a circle with a cross is the symbol for a cell. (a) True (b) False
8. 8.Which drawing is the symbol for a battery? (a) a long and a short line (b) two or more cell symbols (c) triangle, bar and arrows (d) two equal parallel lines
9. 9.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
10. 10.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) capacitor (b) bulb (c) battery (d) ammeter
11. 11.Which drawing is the symbol for a wire? (a) a circle with A inside (b) a dot where wires meet (c) two or more cell symbols (d) a straight line
12. 12.Which drawing is the symbol for a bulb? (a) a circle with V inside (b) a circle with a cross (c) two equal parallel lines (d) a circle with A inside
13. 13.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
14. 14.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) bulb (b) capacitor (c) motor (d) diode
15. 15.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) cell (b) ammeter (c) LED (d) battery
16. 16.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) LED (c) voltmeter (d) resistor
17. 17.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
18. 18.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) neither line (c) the longer line (d) the shorter line
19. 19.Which drawing is the symbol for an LED? (a) many long-short pairs (b) triangle against a bar (c) triangle, bar and arrows (d) one tall, one short bar
20. 20.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) wavy lines (c) dotted circles (d) little stars
21. 21.Which drawing is the symbol for a resistor? (a) a circle with A inside (b) triangle, bar and arrows (c) a line lifted at a gap (d) a small empty box
22. 22.Which drawing is the symbol for a capacitor? (a) a straight line (b) triangle against a bar (c) two equal parallel lines (d) a dot where wires meet
23. 23.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) battery (b) diode (c) junction (d) LED
24. 24.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) quick and clear for all (c) symbols are heavier (d) to make it colourful
25. 25.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) switch (b) motor (c) ammeter (d) resistor
26. 26.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) ammeter (c) diode (d) motor
27. 27.True or false: many long-short pairs is the symbol for a bulb. (a) True (b) False
28. 28.Which drawing is the symbol for a battery? (a) a circle with a cross (b) two equal parallel lines (c) many long-short pairs (d) a circle with V inside
29. 29.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) battery (b) resistor (c) bulb (d) LED
30. 30.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) switch (b) wire (c) voltmeter (d) motor
31. 31.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
32. 32.True or false: two equal parallel lines is the symbol for a bulb. (a) False (b) True
33. 33.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
34. 34.Which drawing is the symbol for a diode? (a) triangle against a bar (b) a long and a short line (c) a straight line (d) many long-short pairs
35. 35.True or false: a small empty box is the symbol for a junction. (a) True (b) False
36. 36.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) LED (b) battery (c) cell (d) capacitor
37. 37.True or false: a line lifted at a gap is the symbol for a voltmeter. (a) True (b) False
38. 38.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) LED (b) resistor (c) battery (d) wire
39. 39.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 circle with V inside
40. 40.Which drawing is the symbol for a cell? (a) a circle with a cross (b) a circle with M inside (c) a long and a short line (d) two or more cell symbols

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