Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 879 · 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 switch? (a) a line lifted at a gap (b) a circle with V inside (c) two equal parallel lines (d) a circle with A inside
2. 2.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) battery (b) junction (c) voltmeter (d) cell
3. 3.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) motor (b) resistor (c) voltmeter (d) cell
4. 4.Which drawing is the symbol for a diode? (a) triangle, bar and arrows (b) many long-short pairs (c) a long and a short line (d) triangle against a bar
5. 5.Which drawing is the symbol for a junction? (a) two or more cell symbols (b) two equal parallel lines (c) a small empty box (d) a dot where wires meet
6. 6.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) little stars (c) wavy lines (d) dotted circles
7. 7.Which drawing is the symbol for a capacitor? (a) a circle with V inside (b) a dot where wires meet (c) two equal parallel lines (d) a plain rectangle
8. 8.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) symbols are heavier (c) to hide the circuit (d) to make it colourful
9. 9.Which drawing is the symbol for a battery? (a) a circle with M inside (b) two or more cell symbols (c) a dot where wires meet (d) triangle against a bar
10. 10.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) junction (c) LED (d) capacitor
11. 11.True or false: a line lifted at a gap is the symbol for a wire. (a) True (b) False
12. 12.Which drawing is the symbol for a voltmeter? (a) a long and a short line (b) a circle with an X in it (c) a circle with V inside (d) two equal parallel lines
13. 13.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) motor (b) resistor (c) junction (d) battery
14. 14.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) motor (b) bulb (c) switch (d) resistor
15. 15.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) both lines (c) the shorter line (d) neither line
16. 16.True or false: one tall, one short bar is the symbol for a voltmeter. (a) False (b) True
17. 17.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) cell (b) voltmeter (c) capacitor (d) wire
18. 18.True or false: a straight line is the symbol for a voltmeter. (a) False (b) True
19. 19.True or false: a circle with a cross is the symbol for a resistor. (a) True (b) False
20. 20.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) ammeter (b) capacitor (c) junction (d) cell
21. 21.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) wire (b) resistor (c) motor (d) battery
22. 22.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
23. 23.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) battery (b) diode (c) resistor (d) LED
24. 24.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
25. 25.True or false: a circle with an X in it is the symbol for a wire. (a) True (b) False
26. 26.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
27. 27.True or false: two equal parallel lines is the symbol for a battery. (a) False (b) True
28. 28.True or false: two equal parallel lines is the symbol for a capacitor. (a) True (b) False
29. 29.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) diode (b) battery (c) cell (d) capacitor
30. 30.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
31. 31.Which drawing is the symbol for a battery? (a) a circle with a cross (b) triangle against a bar (c) a circle with an X in it (d) many long-short pairs
32. 32.True or false: a small empty box is the symbol for a switch. (a) True (b) False
33. 33.True or false: a straight line is the symbol for a wire. (a) False (b) True
34. 34.Which drawing is the symbol for a cell? (a) a dot where wires meet (b) a circle with A inside (c) one tall, one short bar (d) a plain rectangle
35. 35.True or false: two equal parallel lines is the symbol for a motor. (a) True (b) False
36. 36.Which drawing is the symbol for a bulb? (a) a long and a short line (b) a circle with an X in it (c) two equal parallel lines (d) many long-short pairs
37. 37.Which drawing is the symbol for a resistor? (a) a circle with M inside (b) a plain rectangle (c) triangle, bar and arrows (d) a dot where wires meet
38. 38.Which drawing is the symbol for a motor? (a) a circle with A inside (b) triangle, bar and arrows (c) a straight line (d) a circle with M inside
39. 39.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
40. 40.Which drawing is the symbol for an ammeter? (a) one tall, one short bar (b) triangle, bar and arrows (c) a circle with A inside (d) a circle with M inside

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