Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 810 · 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 a line lifted at a gap? (a) resistor (b) switch (c) cell (d) voltmeter
2. 2.Which drawing is the symbol for a bulb? (a) a line lifted at a gap (b) a circle with M inside (c) one tall, one short bar (d) a circle with a cross
3. 3.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) switch (b) battery (c) ammeter (d) resistor
4. 4.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) cell (b) LED (c) diode (d) bulb
5. 5.True or false: a circle with a cross is the symbol for a resistor. (a) True (b) False
6. 6.Which drawing is the symbol for a cell? (a) a circle with M inside (b) one tall, one short bar (c) a line lifted at a gap (d) a plain rectangle
7. 7.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) wavy lines (c) dotted circles (d) little stars
8. 8.Which drawing is the symbol for a battery? (a) a long and a short line (b) two or more cell symbols (c) a straight line (d) a plain rectangle
9. 9.Which drawing is the symbol for a resistor? (a) a circle with a cross (b) two or more cell symbols (c) a small empty box (d) one tall, one short bar
10. 10.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) cell (c) bulb (d) battery
11. 11.Which drawing is the symbol for a switch? (a) a small empty box (b) a line lifted at a gap (c) a circle with M inside (d) triangle against a bar
12. 12.Which drawing is the symbol for a voltmeter? (a) two equal parallel lines (b) one tall, one short bar (c) a circle with an X in it (d) a circle with V inside
13. 13.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) motor (b) ammeter (c) diode (d) voltmeter
14. 14.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) cell (b) battery (c) bulb (d) capacitor
15. 15.Which drawing is the symbol for a capacitor? (a) a circle with an X in it (b) a circle with V inside (c) two equal parallel lines (d) two or more cell symbols
16. 16.Which drawing is the symbol for a junction? (a) a dot where wires meet (b) a circle with M inside (c) a circle with an X in it (d) many long-short pairs
17. 17.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) both lines (c) the shorter line (d) neither line
18. 18.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) resistor (b) ammeter (c) diode (d) voltmeter
19. 19.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) symbols are heavier (c) to make it colourful (d) quick and clear for all
20. 20.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) ammeter (b) resistor (c) capacitor (d) cell
21. 21.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) resistor (c) wire (d) junction
22. 22.Which drawing is the symbol for a motor? (a) a circle with M inside (b) a circle with V inside (c) a plain rectangle (d) a small empty box
23. 23.True or false: two equal parallel lines is the symbol for a motor. (a) True (b) False
24. 24.Which drawing is the symbol for a battery? (a) a plain rectangle (b) a circle with V inside (c) many long-short pairs (d) a small empty box
25. 25.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
26. 26.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) switch (b) motor (c) LED (d) junction
27. 27.Which drawing is the symbol for an ammeter? (a) many long-short pairs (b) a circle with M inside (c) a straight line (d) a circle with A inside
28. 28.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
29. 29.True or false: a small empty box is the symbol for a junction. (a) True (b) False
30. 30.True or false: a dot where wires meet is the symbol for a motor. (a) True (b) False
31. 31.True or false: a small empty box is the symbol for a switch. (a) False (b) True
32. 32.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
33. 33.Which drawing is the symbol for a wire? (a) a dot where wires meet (b) a circle with a cross (c) a small empty box (d) a straight line
34. 34.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
35. 35.True or false: two or more cell symbols is the symbol for a cell. (a) True (b) False
36. 36.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
37. 37.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
38. 38.Which drawing is the symbol for a cell? (a) a long and a short line (b) a dot where wires meet (c) a small empty box (d) two equal parallel lines
39. 39.True or false: a small empty box is the symbol for a bulb. (a) False (b) True
40. 40.Which drawing is the symbol for an LED? (a) a circle with a cross (b) a circle with V inside (c) a dot where wires meet (d) triangle, bar and arrows

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