Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 996 · 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 cell symbol, which line is the + terminal? (a) the shorter line (b) the longer line (c) both lines (d) neither line
2. 2.True or false: a line lifted at a gap is the symbol for an LED. (a) False (b) True
3. 3.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) straight lines (c) dotted circles (d) wavy lines
4. 4.Which drawing is the symbol for a resistor? (a) a straight line (b) one tall, one short bar (c) a small empty box (d) triangle, bar and arrows
5. 5.✏️ 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
6. 6.True or false: a dot where wires meet is the symbol for a wire. (a) False (b) True
7. 7.Which drawing is the symbol for a battery? (a) a long and a short line (b) many long-short pairs (c) two equal parallel lines (d) one tall, one short bar
8. 8.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) bulb (b) battery (c) cell (d) motor
9. 9.True or false: a circle with M inside is the symbol for a diode. (a) False (b) True
10. 10.Which drawing is the symbol for a cell? (a) a long and a short line (b) a circle with an X in it (c) a straight line (d) a circle with A inside
11. 11.Which drawing is the symbol for a resistor? (a) a long and a short line (b) a plain rectangle (c) one tall, one short bar (d) a circle with A inside
12. 12.Which drawing is the symbol for a wire? (a) a circle with A inside (b) many long-short pairs (c) a dot where wires meet (d) a straight line
13. 13.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
14. 14.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) junction (b) voltmeter (c) switch (d) ammeter
15. 15.True or false: a dot where wires meet is the symbol for a capacitor. (a) False (b) True
16. 16.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
17. 17.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) resistor (b) diode (c) junction (d) cell
18. 18.True or false: a straight line is the symbol for a wire. (a) True (b) False
19. 19.True or false: a circle with an X in it is the symbol for a resistor. (a) True (b) False
20. 20.True or false: a circle with A inside is the symbol for a wire. (a) False (b) True
21. 21.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) junction (b) cell (c) capacitor (d) LED
22. 22.Which drawing is the symbol for a switch? (a) many long-short pairs (b) two equal parallel lines (c) a straight line (d) a line lifted at a gap
23. 23.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) battery (b) ammeter (c) voltmeter (d) resistor
24. 24.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) LED (c) voltmeter (d) resistor
25. 25.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
26. 26.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) battery (c) diode (d) LED
27. 27.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
28. 28.True or false: a plain rectangle is the symbol for a diode. (a) False (b) True
29. 29.Which drawing is the symbol for an ammeter? (a) a line lifted at a gap (b) two or more cell symbols (c) a circle with A inside (d) many long-short pairs
30. 30.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) battery (b) cell (c) motor (d) capacitor
31. 31.Which drawing is the symbol for a junction? (a) a circle with A inside (b) a dot where wires meet (c) two or more cell symbols (d) a circle with a cross
32. 32.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) battery (c) cell (d) switch
33. 33.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) junction (b) motor (c) wire (d) LED
34. 34.True or false: a circle with an X in it is the symbol for a motor. (a) False (b) True
35. 35.Which drawing is the symbol for an LED? (a) triangle against a bar (b) a circle with an X in it (c) triangle, bar and arrows (d) a long and a short line
36. 36.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
37. 37.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
38. 38.Which drawing is the symbol for a capacitor? (a) a circle with V inside (b) a line lifted at a gap (c) a circle with a cross (d) two equal parallel lines
39. 39.Which drawing is the symbol for a voltmeter? (a) a circle with an X in it (b) a circle with V inside (c) triangle, bar and arrows (d) a circle with M inside
40. 40.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True

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