Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 751 · 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.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
2. 2.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) a small empty box (c) many long-short pairs (d) one tall, one short bar
3. 3.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) voltmeter (b) battery (c) ammeter (d) cell
4. 4.Which drawing is the symbol for a diode? (a) a dot where wires meet (b) triangle against a bar (c) a plain rectangle (d) a circle with M inside
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) the longer line (b) both lines (c) neither line (d) the shorter line
7. 7.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
8. 8.True or false: a straight line is the symbol for an ammeter. (a) False (b) True
9. 9.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
10. 10.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) wavy lines (c) little stars (d) straight lines
11. 11.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) junction (b) motor (c) battery (d) resistor
12. 12.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) LED (b) resistor (c) junction (d) ammeter
13. 13.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) capacitor (b) junction (c) switch (d) resistor
14. 14.Which drawing is the symbol for a battery? (a) a long and a short line (b) two or more cell symbols (c) a circle with a cross (d) two equal parallel lines
15. 15.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
16. 16.Which drawing is the symbol for a bulb? (a) two or more cell symbols (b) a circle with an X in it (c) a circle with A inside (d) triangle, bar and arrows
17. 17.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) battery (b) junction (c) LED (d) diode
18. 18.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) resistor (b) bulb (c) switch (d) battery
19. 19.Which drawing is the symbol for an ammeter? (a) a small empty box (b) a circle with A inside (c) a dot where wires meet (d) a circle with V inside
20. 20.Which drawing is the symbol for an LED? (a) a long and a short line (b) triangle, bar and arrows (c) triangle against a bar (d) a circle with a cross
21. 21.True or false: a straight line is the symbol for a junction. (a) False (b) True
22. 22.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) to make it colourful (c) quick and clear for all (d) to hide the circuit
23. 23.True or false: a circle with A inside is the symbol for a resistor. (a) True (b) False
24. 24.Which drawing is the symbol for a voltmeter? (a) a long and a short line (b) a dot where wires meet (c) a circle with an X in it (d) a circle with V inside
25. 25.True or false: a circle with an X in it is the symbol for a junction. (a) False (b) True
26. 26.True or false: a circle with A inside is the symbol for a wire. (a) True (b) False
27. 27.Which drawing is the symbol for a junction? (a) a circle with an X in it (b) two equal parallel lines (c) a dot where wires meet (d) a circle with A inside
28. 28.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) ammeter (b) wire (c) resistor (d) voltmeter
29. 29.Which drawing is the symbol for a cell? (a) a circle with an X in it (b) one tall, one short bar (c) triangle, bar and arrows (d) two equal parallel lines
30. 30.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) wire (b) bulb (c) LED (d) capacitor
31. 31.Which drawing is the symbol for a switch? (a) two or more cell symbols (b) a dot where wires meet (c) a line lifted at a gap (d) many long-short pairs
32. 32.True or false: a circle with M inside is the symbol for an ammeter. (a) True (b) False
33. 33.True or false: two or more cell symbols is the symbol for a resistor. (a) False (b) True
34. 34.True or false: a line lifted at a gap is the symbol for a motor. (a) True (b) False
35. 35.Which drawing is the symbol for a resistor? (a) a circle with M inside (b) a dot where wires meet (c) a plain rectangle (d) a circle with A inside
36. 36.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
37. 37.True or false: a circle with V inside is the symbol for an ammeter. (a) True (b) False
38. 38.Which drawing is the symbol for a cell? (a) a circle with a cross (b) a long and a short line (c) a straight line (d) a circle with M inside
39. 39.True or false: triangle, bar and arrows is the symbol for a resistor. (a) True (b) False
40. 40.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) capacitor (b) ammeter (c) motor (d) cell

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