Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 704 · 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 two or more cell symbols? (a) bulb (b) battery (c) resistor (d) capacitor
2. 2.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) to make it colourful (c) to hide the circuit (d) symbols are heavier
3. 3.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) bulb (b) ammeter (c) switch (d) LED
4. 4.✏️ In a circuit diagram, which part is drawn as a straight line? (a) LED (b) capacitor (c) wire (d) voltmeter
5. 5.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the shorter line (c) the longer line (d) neither line
6. 6.True or false: triangle against a bar is the symbol for a resistor. (a) False (b) True
7. 7.True or false: triangle against a bar is the symbol for a diode. (a) True (b) False
8. 8.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) a circle with an X in it (c) a circle with M inside (d) a circle with V inside
9. 9.True or false: a circle with V inside is the symbol for a voltmeter. (a) True (b) False
10. 10.Which drawing is the symbol for a voltmeter? (a) two equal parallel lines (b) a long and a short line (c) a circle with A inside (d) a circle with V inside
11. 11.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) straight lines (c) little stars (d) dotted circles
12. 12.True or false: a long and a short line is the symbol for a motor. (a) False (b) True
13. 13.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) cell (b) capacitor (c) resistor (d) voltmeter
14. 14.True or false: a circle with an X in it is the symbol for a switch. (a) False (b) True
15. 15.Which drawing is the symbol for a bulb? (a) one tall, one short bar (b) a circle with A inside (c) a circle with M inside (d) a circle with an X in it
16. 16.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
17. 17.Which drawing is the symbol for a resistor? (a) a straight line (b) two equal parallel lines (c) a circle with A inside (d) a small empty box
18. 18.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) junction (b) bulb (c) LED (d) motor
19. 19.Which drawing is the symbol for a cell? (a) one tall, one short bar (b) triangle against a bar (c) a dot where wires meet (d) a circle with an X in it
20. 20.True or false: a circle with A inside is the symbol for a junction. (a) False (b) True
21. 21.Which drawing is the symbol for a capacitor? (a) a circle with a cross (b) two equal parallel lines (c) triangle, bar and arrows (d) a long and a short line
22. 22.True or false: a circle with A inside is the symbol for an ammeter. (a) True (b) False
23. 23.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
24. 24.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) ammeter (b) cell (c) junction (d) diode
25. 25.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) cell (b) LED (c) switch (d) voltmeter
26. 26.True or false: two equal parallel lines is the symbol for a capacitor. (a) True (b) False
27. 27.True or false: one tall, one short bar is the symbol for a wire. (a) False (b) True
28. 28.Which drawing is the symbol for a battery? (a) a plain rectangle (b) a long and a short line (c) many long-short pairs (d) one tall, one short bar
29. 29.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) bulb (b) battery (c) switch (d) junction
30. 30.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) diode (b) LED (c) wire (d) resistor
31. 31.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) voltmeter (b) ammeter (c) resistor (d) motor
32. 32.True or false: triangle against a bar is the symbol for a voltmeter. (a) True (b) False
33. 33.True or false: a straight line is the symbol for a wire. (a) False (b) True
34. 34.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) motor (b) wire (c) bulb (d) ammeter
35. 35.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
36. 36.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) bulb (b) battery (c) resistor (d) diode
37. 37.True or false: two equal parallel lines is the symbol for a wire. (a) False (b) True
38. 38.Which drawing is the symbol for a wire? (a) two or more cell symbols (b) a circle with A inside (c) a straight line (d) a long and a short line
39. 39.True or false: triangle against a bar is the symbol for a motor. (a) True (b) False
40. 40.Which drawing is the symbol for a junction? (a) a straight line (b) a circle with M inside (c) a dot where wires meet (d) a circle with A inside

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