Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 56 · 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.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) to make it colourful (c) symbols are heavier (d) to hide the circuit
2. 2.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) straight lines (c) wavy lines (d) dotted circles
3. 3.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) motor (b) ammeter (c) junction (d) bulb
4. 4.True or false: many long-short pairs is the symbol for a motor. (a) False (b) True
5. 5.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) switch (b) capacitor (c) battery (d) voltmeter
6. 6.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) junction (b) voltmeter (c) resistor (d) capacitor
7. 7.Which drawing is the symbol for a junction? (a) a circle with M inside (b) a straight line (c) a dot where wires meet (d) two equal parallel lines
8. 8.True or false: a small empty box is the symbol for an LED. (a) True (b) False
9. 9.Which drawing is the symbol for a voltmeter? (a) a circle with a cross (b) a circle with V inside (c) triangle, bar and arrows (d) triangle against a bar
10. 10.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) a circle with M inside (c) a circle with a cross (d) a line lifted at a gap
11. 11.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
12. 12.Which drawing is the symbol for a resistor? (a) two equal parallel lines (b) a circle with a cross (c) one tall, one short bar (d) a small empty box
13. 13.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) switch (b) junction (c) cell (d) resistor
14. 14.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) the shorter line (c) neither line (d) both lines
15. 15.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) battery (b) cell (c) diode (d) resistor
16. 16.True or false: triangle against a bar is the symbol for a wire. (a) True (b) False
17. 17.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) switch (c) resistor (d) motor
18. 18.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) battery (b) LED (c) bulb (d) capacitor
19. 19.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) bulb (b) resistor (c) wire (d) junction
20. 20.True or false: a circle with A inside is the symbol for an ammeter. (a) True (b) False
21. 21.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) bulb (b) diode (c) LED (d) cell
22. 22.True or false: a circle with V inside is the symbol for a junction. (a) True (b) False
23. 23.Which drawing is the symbol for a motor? (a) one tall, one short bar (b) a circle with M inside (c) two equal parallel lines (d) a line lifted at a gap
24. 24.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) bulb (b) cell (c) capacitor (d) switch
25. 25.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
26. 26.Which drawing is the symbol for a cell? (a) a plain rectangle (b) a circle with A inside (c) two or more cell symbols (d) one tall, one short bar
27. 27.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) cell (b) resistor (c) bulb (d) diode
28. 28.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) resistor (b) bulb (c) cell (d) motor
29. 29.True or false: a circle with M inside is the symbol for a switch. (a) True (b) False
30. 30.Which drawing is the symbol for a battery? (a) many long-short pairs (b) a straight line (c) two equal parallel lines (d) a circle with a cross
31. 31.True or false: a circle with A inside is the symbol for a capacitor. (a) False (b) True
32. 32.True or false: a circle with a cross is the symbol for a diode. (a) False (b) True
33. 33.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
34. 34.True or false: a long and a short line is the symbol for a capacitor. (a) False (b) True
35. 35.Which drawing is the symbol for a wire? (a) triangle, bar and arrows (b) a straight line (c) a circle with V inside (d) one tall, one short bar
36. 36.True or false: a straight line is the symbol for a wire. (a) True (b) False
37. 37.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) bulb (b) voltmeter (c) cell (d) ammeter
38. 38.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) motor (c) cell (d) LED
39. 39.Which drawing is the symbol for a resistor? (a) a dot where wires meet (b) two or more cell symbols (c) a plain rectangle (d) a line lifted at a gap
40. 40.Which drawing is the symbol for a battery? (a) triangle against a bar (b) a circle with a cross (c) a small empty box (d) two or more cell symbols

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