Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 888 · 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 cell? (a) many long-short pairs (b) a straight line (c) one tall, one short bar (d) two or more cell symbols
2. 2.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) capacitor (b) ammeter (c) junction (d) motor
3. 3.Which drawing is the symbol for a battery? (a) triangle against a bar (b) a dot where wires meet (c) two or more cell symbols (d) a circle with V inside
4. 4.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) LED (b) switch (c) ammeter (d) resistor
5. 5.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) quick and clear for all (c) to make it colourful (d) to hide the circuit
6. 6.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) straight lines (c) wavy lines (d) little stars
7. 7.Which drawing is the symbol for a junction? (a) a circle with a cross (b) a circle with V inside (c) many long-short pairs (d) a dot where wires meet
8. 8.True or false: a circle with A inside is the symbol for a voltmeter. (a) True (b) False
9. 9.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) ammeter (b) diode (c) switch (d) cell
10. 10.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) bulb (b) battery (c) voltmeter (d) switch
11. 11.Which drawing is the symbol for a resistor? (a) many long-short pairs (b) a small empty box (c) a circle with a cross (d) a circle with an X in it
12. 12.True or false: one tall, one short bar is the symbol for a bulb. (a) True (b) False
13. 13.Which drawing is the symbol for a diode? (a) a circle with an X in it (b) a circle with A inside (c) triangle against a bar (d) one tall, one short bar
14. 14.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) capacitor (b) bulb (c) voltmeter (d) resistor
15. 15.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) switch (b) battery (c) wire (d) resistor
16. 16.Which drawing is the symbol for a voltmeter? (a) many long-short pairs (b) a circle with V inside (c) one tall, one short bar (d) a circle with a cross
17. 17.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) neither line (c) the shorter line (d) both lines
18. 18.Which drawing is the symbol for a motor? (a) a circle with V inside (b) a circle with an X in it (c) a dot where wires meet (d) a circle with M inside
19. 19.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
20. 20.Which drawing is the symbol for an LED? (a) a circle with A inside (b) a plain rectangle (c) a line lifted at a gap (d) triangle, bar and arrows
21. 21.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) bulb (b) junction (c) capacitor (d) motor
22. 22.True or false: a line lifted at a gap is the symbol for a motor. (a) True (b) False
23. 23.True or false: a circle with a cross is the symbol for a switch. (a) True (b) False
24. 24.True or false: triangle against a bar is the symbol for a resistor. (a) True (b) False
25. 25.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) diode (b) voltmeter (c) bulb (d) ammeter
26. 26.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) ammeter (b) battery (c) voltmeter (d) resistor
27. 27.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) LED (b) wire (c) battery (d) cell
28. 28.Which drawing is the symbol for a bulb? (a) a plain rectangle (b) triangle against a bar (c) a line lifted at a gap (d) a circle with a cross
29. 29.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
30. 30.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
31. 31.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
32. 32.Which drawing is the symbol for a cell? (a) two equal parallel lines (b) triangle against a bar (c) a circle with a cross (d) a long and a short line
33. 33.Which drawing is the symbol for a switch? (a) a dot where wires meet (b) a line lifted at a gap (c) a circle with M inside (d) two equal parallel lines
34. 34.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
35. 35.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) voltmeter (b) resistor (c) ammeter (d) battery
36. 36.True or false: a circle with A inside is the symbol for an LED. (a) False (b) True
37. 37.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) voltmeter (b) motor (c) LED (d) switch
38. 38.True or false: a plain rectangle is the symbol for a wire. (a) True (b) False
39. 39.True or false: many long-short pairs is the symbol for a junction. (a) False (b) True
40. 40.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) switch (b) LED (c) junction (d) resistor

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