Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 488 · 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 many long-short pairs? (a) diode (b) resistor (c) battery (d) ammeter
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 two or more cell symbols? (a) resistor (b) motor (c) battery (d) ammeter
4. 4.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
5. 5.Which drawing is the symbol for a switch? (a) a circle with V inside (b) many long-short pairs (c) two or more cell symbols (d) a line lifted at a gap
6. 6.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
7. 7.True or false: a circle with V inside is the symbol for a battery. (a) False (b) True
8. 8.True or false: one tall, one short bar is the symbol for a switch. (a) True (b) False
9. 9.Which drawing is the symbol for a motor? (a) many long-short pairs (b) a circle with a cross (c) a circle with M inside (d) a straight line
10. 10.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) cell (b) resistor (c) wire (d) junction
11. 11.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) junction (b) battery (c) voltmeter (d) cell
12. 12.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) symbols are heavier (c) to hide the circuit (d) quick and clear for all
13. 13.✏️ In a circuit diagram, which part is drawn as a straight line? (a) wire (b) bulb (c) motor (d) LED
14. 14.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) both lines (c) the shorter line (d) the longer line
15. 15.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
16. 16.Which drawing is the symbol for a capacitor? (a) many long-short pairs (b) two equal parallel lines (c) a circle with a cross (d) a long and a short line
17. 17.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) capacitor (b) ammeter (c) cell (d) wire
18. 18.Which drawing is the symbol for a resistor? (a) a circle with M inside (b) a circle with an X in it (c) one tall, one short bar (d) a small empty box
19. 19.True or false: a straight line is the symbol for a wire. (a) True (b) False
20. 20.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) LED (b) junction (c) motor (d) wire
21. 21.Which drawing is the symbol for an LED? (a) a straight line (b) a circle with V inside (c) triangle, bar and arrows (d) a small empty box
22. 22.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) voltmeter (c) switch (d) battery
23. 23.True or false: a small empty box is the symbol for a switch. (a) False (b) True
24. 24.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) resistor (b) bulb (c) diode (d) wire
25. 25.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) resistor (b) bulb (c) cell (d) motor
26. 26.True or false: a small empty box is the symbol for a diode. (a) True (b) False
27. 27.Which drawing is the symbol for a cell? (a) a circle with V inside (b) triangle, bar and arrows (c) a long and a short line (d) triangle against a bar
28. 28.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) bulb (b) ammeter (c) junction (d) wire
29. 29.True or false: two or more cell symbols is the symbol for a resistor. (a) True (b) False
30. 30.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) capacitor (b) LED (c) resistor (d) diode
31. 31.Which drawing is the symbol for a junction? (a) a dot where wires meet (b) a small empty box (c) a long and a short line (d) triangle, bar and arrows
32. 32.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
33. 33.Which drawing is the symbol for a voltmeter? (a) a circle with M inside (b) a line lifted at a gap (c) many long-short pairs (d) a circle with V inside
34. 34.Which drawing is the symbol for an ammeter? (a) a circle with V inside (b) a straight line (c) a circle with a cross (d) a circle with A inside
35. 35.Which drawing is the symbol for a bulb? (a) a circle with an X in it (b) one tall, one short bar (c) a long and a short line (d) a circle with V inside
36. 36.Which drawing is the symbol for a wire? (a) a circle with a cross (b) a line lifted at a gap (c) a plain rectangle (d) a straight line
37. 37.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) resistor (b) voltmeter (c) LED (d) capacitor
38. 38.True or false: two equal parallel lines is the symbol for a capacitor. (a) True (b) False
39. 39.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) capacitor (b) cell (c) LED (d) resistor
40. 40.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) wire (b) voltmeter (c) switch (d) junction

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