Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 468 · 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) neither line (b) both lines (c) the shorter line (d) the longer line
2. 2.Which drawing is the symbol for a bulb? (a) two or more cell symbols (b) a circle with an X in it (c) triangle against a bar (d) many long-short pairs
3. 3.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) symbols are heavier (c) quick and clear for all (d) to hide the circuit
4. 4.Which drawing is the symbol for a bulb? (a) a plain rectangle (b) two or more cell symbols (c) a dot where wires meet (d) a circle with a cross
5. 5.True or false: two equal parallel lines is the symbol for a capacitor. (a) True (b) False
6. 6.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) voltmeter (b) battery (c) resistor (d) switch
7. 7.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
8. 8.Which drawing is the symbol for a wire? (a) many long-short pairs (b) a straight line (c) two or more cell symbols (d) one tall, one short bar
9. 9.True or false: a line lifted at a gap is the symbol for a wire. (a) False (b) True
10. 10.True or false: many long-short pairs is the symbol for a cell. (a) False (b) True
11. 11.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) battery (b) ammeter (c) wire (d) resistor
12. 12.Which drawing is the symbol for a voltmeter? (a) two or more cell symbols (b) a circle with an X in it (c) a circle with V inside (d) a long and a short line
13. 13.Which drawing is the symbol for a battery? (a) a straight line (b) a circle with a cross (c) two equal parallel lines (d) two or more cell symbols
14. 14.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) motor (b) battery (c) junction (d) bulb
15. 15.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) ammeter (b) resistor (c) cell (d) bulb
16. 16.Which drawing is the symbol for an LED? (a) a circle with A inside (b) a long and a short line (c) two equal parallel lines (d) triangle, bar and arrows
17. 17.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
18. 18.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
19. 19.Which drawing is the symbol for a motor? (a) a circle with V inside (b) a long and a short line (c) a circle with an X in it (d) a circle with M inside
20. 20.Which drawing is the symbol for a diode? (a) a straight line (b) a circle with V inside (c) triangle against a bar (d) a circle with A inside
21. 21.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) dotted circles (c) little stars (d) wavy lines
22. 22.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) junction (b) LED (c) switch (d) cell
23. 23.Which drawing is the symbol for a switch? (a) a circle with a cross (b) triangle, bar and arrows (c) a line lifted at a gap (d) two or more cell symbols
24. 24.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) battery (b) diode (c) cell (d) bulb
25. 25.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
26. 26.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) diode (b) motor (c) resistor (d) ammeter
27. 27.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
28. 28.Which drawing is the symbol for a resistor? (a) a small empty box (b) a circle with an X in it (c) a straight line (d) two or more cell symbols
29. 29.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) switch (b) bulb (c) cell (d) resistor
30. 30.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) cell (b) LED (c) capacitor (d) voltmeter
31. 31.True or false: a dot where wires meet is the symbol for a junction. (a) True (b) False
32. 32.Which drawing is the symbol for a cell? (a) a circle with A inside (b) a long and a short line (c) a circle with M inside (d) a circle with V inside
33. 33.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
34. 34.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) capacitor (b) switch (c) cell (d) LED
35. 35.True or false: triangle, bar and arrows is the symbol for a wire. (a) True (b) False
36. 36.True or false: two equal parallel lines is the symbol for an LED. (a) True (b) False
37. 37.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
38. 38.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
39. 39.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) a small empty box (c) a circle with a cross (d) many long-short pairs
40. 40.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) wire (b) resistor (c) battery (d) voltmeter

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