Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 165 · 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 circle with an X in it? (a) voltmeter (b) capacitor (c) bulb (d) ammeter
2. 2.True or false: a straight line is the symbol for a wire. (a) True (b) False
3. 3.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
4. 4.✏️ 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
5. 5.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) capacitor (b) resistor (c) ammeter (d) diode
6. 6.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) voltmeter (b) LED (c) motor (d) diode
7. 7.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) battery (b) cell (c) ammeter (d) LED
8. 8.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) little stars (c) wavy lines (d) dotted circles
9. 9.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the longer line (c) neither line (d) the shorter line
10. 10.True or false: a circle with A inside is the symbol for a motor. (a) False (b) True
11. 11.Which drawing is the symbol for a wire? (a) two equal parallel lines (b) a circle with an X in it (c) a straight line (d) a long and a short line
12. 12.True or false: a straight line is the symbol for a voltmeter. (a) False (b) True
13. 13.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) resistor (b) cell (c) switch (d) ammeter
14. 14.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) diode (b) cell (c) resistor (d) capacitor
15. 15.True or false: a plain rectangle is the symbol for a switch. (a) True (b) False
16. 16.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) diode (b) ammeter (c) bulb (d) switch
17. 17.True or false: a dot where wires meet is the symbol for a bulb. (a) True (b) False
18. 18.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) capacitor (b) resistor (c) motor (d) wire
19. 19.True or false: one tall, one short bar is the symbol for a bulb. (a) True (b) False
20. 20.Which drawing is the symbol for a motor? (a) a circle with M inside (b) a dot where wires meet (c) triangle, bar and arrows (d) a circle with an X in it
21. 21.Which drawing is the symbol for a junction? (a) a circle with M inside (b) a small empty box (c) a dot where wires meet (d) many long-short pairs
22. 22.Which drawing is the symbol for an ammeter? (a) a dot where wires meet (b) two or more cell symbols (c) a circle with M inside (d) a circle with A inside
23. 23.True or false: a straight line is the symbol for a cell. (a) True (b) False
24. 24.Which drawing is the symbol for a bulb? (a) many long-short pairs (b) a circle with M inside (c) a circle with an X in it (d) one tall, one short bar
25. 25.Which drawing is the symbol for a bulb? (a) triangle, bar and arrows (b) a straight line (c) a circle with a cross (d) two or more cell symbols
26. 26.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) a circle with A inside (c) a long and a short line (d) two equal parallel lines
27. 27.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
28. 28.True or false: a dot where wires meet is the symbol for a junction. (a) True (b) False
29. 29.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
30. 30.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) ammeter (b) diode (c) cell (d) resistor
31. 31.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) motor (b) LED (c) resistor (d) junction
32. 32.True or false: triangle against a bar is the symbol for a cell. (a) False (b) True
33. 33.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) motor (b) bulb (c) ammeter (d) battery
34. 34.Which drawing is the symbol for a resistor? (a) many long-short pairs (b) one tall, one short bar (c) a circle with A inside (d) a small empty box
35. 35.Which drawing is the symbol for a capacitor? (a) a long and a short line (b) a plain rectangle (c) two equal parallel lines (d) a circle with M inside
36. 36.True or false: a circle with M inside is the symbol for a motor. (a) True (b) False
37. 37.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) battery (b) LED (c) voltmeter (d) diode
38. 38.True or false: a circle with a cross is the symbol for a voltmeter. (a) True (b) False
39. 39.Which drawing is the symbol for a diode? (a) triangle against a bar (b) a plain rectangle (c) many long-short pairs (d) one tall, one short bar
40. 40.✏️ In a circuit diagram, which part is drawn as a straight line? (a) ammeter (b) voltmeter (c) wire (d) capacitor

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