Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 612 · 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) two or more cell symbols (b) a circle with a cross (c) a circle with M inside (d) a plain rectangle
2. 2.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) quick and clear for all (c) to hide the circuit (d) to make it colourful
3. 3.True or false: triangle against a bar is the symbol for a voltmeter. (a) True (b) False
4. 4.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) battery (b) switch (c) capacitor (d) LED
5. 5.True or false: a circle with A inside is the symbol for an ammeter. (a) True (b) False
6. 6.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the shorter line (c) neither line (d) the longer line
7. 7.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) battery (b) LED (c) capacitor (d) switch
8. 8.True or false: triangle against a bar is the symbol for a cell. (a) True (b) False
9. 9.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) wire (b) bulb (c) cell (d) battery
10. 10.True or false: a small empty box is the symbol for a motor. (a) True (b) False
11. 11.True or false: a circle with V inside is the symbol for a motor. (a) False (b) True
12. 12.✏️ In a circuit diagram, which part is drawn as a straight line? (a) junction (b) wire (c) resistor (d) battery
13. 13.Which drawing is the symbol for a junction? (a) one tall, one short bar (b) a plain rectangle (c) two or more cell symbols (d) a dot where wires meet
14. 14.True or false: triangle against a bar is the symbol for a switch. (a) True (b) False
15. 15.Which drawing is the symbol for a battery? (a) a line lifted at a gap (b) many long-short pairs (c) triangle, bar and arrows (d) a circle with M inside
16. 16.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) motor (b) cell (c) capacitor (d) wire
17. 17.Which drawing is the symbol for a cell? (a) a line lifted at a gap (b) one tall, one short bar (c) triangle against a bar (d) two or more cell symbols
18. 18.True or false: one tall, one short bar is the symbol for a switch. (a) False (b) True
19. 19.True or false: a straight line is the symbol for a wire. (a) False (b) True
20. 20.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
21. 21.True or false: two equal parallel lines is the symbol for a capacitor. (a) True (b) False
22. 22.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) battery (c) diode (d) resistor
23. 23.True or false: a long and a short line is the symbol for a capacitor. (a) True (b) False
24. 24.True or false: a circle with a cross is the symbol for a junction. (a) True (b) False
25. 25.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) junction (b) resistor (c) LED (d) bulb
26. 26.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) LED (b) resistor (c) battery (d) cell
27. 27.Which drawing is the symbol for a bulb? (a) a circle with a cross (b) one tall, one short bar (c) a straight line (d) triangle against a bar
28. 28.Which drawing is the symbol for a wire? (a) a straight line (b) a circle with M inside (c) one tall, one short bar (d) a circle with A inside
29. 29.Which drawing is the symbol for a resistor? (a) a long and a short line (b) a small empty box (c) a line lifted at a gap (d) two equal parallel lines
30. 30.Which drawing is the symbol for a switch? (a) one tall, one short bar (b) a dot where wires meet (c) a circle with V inside (d) a line lifted at a gap
31. 31.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) wavy lines (c) straight lines (d) little stars
32. 32.Which drawing is the symbol for an LED? (a) a line lifted at a gap (b) triangle, bar and arrows (c) a circle with a cross (d) many long-short pairs
33. 33.True or false: two equal parallel lines is the symbol for a switch. (a) False (b) True
34. 34.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) diode (b) LED (c) resistor (d) cell
35. 35.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) battery (b) bulb (c) LED (d) switch
36. 36.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) motor (b) voltmeter (c) wire (d) battery
37. 37.True or false: a long and a short line is the symbol for a resistor. (a) True (b) False
38. 38.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) ammeter (b) wire (c) resistor (d) battery
39. 39.Which drawing is the symbol for a bulb? (a) many long-short pairs (b) a circle with an X in it (c) triangle against a bar (d) a dot where wires meet
40. 40.True or false: a circle with V inside is the symbol for a bulb. (a) False (b) True

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