Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 171 · 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 small empty box (b) a circle with M inside (c) a long and a short line (d) a line lifted at a gap
2. 2.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
3. 3.Which drawing is the symbol for a junction? (a) a line lifted at a gap (b) a dot where wires meet (c) a circle with A inside (d) triangle, bar and arrows
4. 4.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) neither line (c) both lines (d) the longer line
5. 5.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) voltmeter (b) cell (c) LED (d) resistor
6. 6.Which drawing is the symbol for a wire? (a) triangle, bar and arrows (b) a plain rectangle (c) a straight line (d) many long-short pairs
7. 7.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) ammeter (c) bulb (d) capacitor
8. 8.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
9. 9.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) LED (b) cell (c) switch (d) capacitor
10. 10.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) diode (b) cell (c) resistor (d) switch
11. 11.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) quick and clear for all (c) to hide the circuit (d) to make it colourful
12. 12.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) diode (b) LED (c) ammeter (d) motor
13. 13.True or false: a dot where wires meet is the symbol for a wire. (a) False (b) True
14. 14.✏️ In a circuit diagram, which part is drawn as a straight line? (a) bulb (b) battery (c) capacitor (d) wire
15. 15.True or false: two equal parallel lines is the symbol for a voltmeter. (a) True (b) False
16. 16.Which drawing is the symbol for a diode? (a) a circle with V inside (b) many long-short pairs (c) a circle with a cross (d) triangle against a bar
17. 17.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) cell (b) wire (c) bulb (d) LED
18. 18.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) bulb (b) capacitor (c) motor (d) diode
19. 19.True or false: a long and a short line is the symbol for a diode. (a) False (b) True
20. 20.Which drawing is the symbol for a cell? (a) two or more cell symbols (b) a plain rectangle (c) a circle with a cross (d) a long and a short line
21. 21.Which drawing is the symbol for a motor? (a) triangle, bar and arrows (b) a small empty box (c) a dot where wires meet (d) a circle with M inside
22. 22.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) junction (c) cell (d) LED
23. 23.Which drawing is the symbol for an LED? (a) a plain rectangle (b) one tall, one short bar (c) a straight line (d) triangle, bar and arrows
24. 24.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
25. 25.True or false: a circle with A inside is the symbol for a wire. (a) True (b) False
26. 26.True or false: a circle with A inside is the symbol for a switch. (a) True (b) False
27. 27.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) battery (b) motor (c) voltmeter (d) cell
28. 28.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) wavy lines (c) dotted circles (d) straight lines
29. 29.True or false: a circle with A inside is the symbol for an ammeter. (a) True (b) False
30. 30.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) ammeter (b) resistor (c) capacitor (d) switch
31. 31.Which drawing is the symbol for a battery? (a) a dot where wires meet (b) two or more cell symbols (c) a circle with A inside (d) one tall, one short bar
32. 32.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) switch (b) voltmeter (c) diode (d) cell
33. 33.Which drawing is the symbol for a capacitor? (a) a circle with M inside (b) a straight line (c) many long-short pairs (d) two equal parallel lines
34. 34.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) switch (b) junction (c) bulb (d) resistor
35. 35.True or false: two or more cell symbols is the symbol for a switch. (a) True (b) False
36. 36.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
37. 37.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
38. 38.True or false: a circle with M inside is the symbol for a motor. (a) True (b) False
39. 39.True or false: two equal parallel lines is the symbol for a cell. (a) True (b) False
40. 40.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) capacitor (b) battery (c) junction (d) cell

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