Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 175 · 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 cell symbol, which line is the + terminal? (a) the shorter line (b) the longer line (c) both lines (d) neither line
2. 2.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) wire (b) junction (c) switch (d) ammeter
3. 3.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) a small empty box (c) a long and a short line (d) triangle against a bar
4. 4.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) switch (b) voltmeter (c) LED (d) battery
5. 5.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) LED (b) ammeter (c) cell (d) diode
6. 6.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) voltmeter (b) wire (c) ammeter (d) bulb
7. 7.True or false: one tall, one short bar is the symbol for a switch. (a) False (b) True
8. 8.True or false: a long and a short line is the symbol for a wire. (a) False (b) True
9. 9.Which drawing is the symbol for a resistor? (a) a circle with an X in it (b) a plain rectangle (c) many long-short pairs (d) a circle with V inside
10. 10.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
11. 11.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) capacitor (b) voltmeter (c) bulb (d) motor
12. 12.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
13. 13.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) a long and a short line (c) a circle with a cross (d) a plain rectangle
14. 14.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) quick and clear for all (c) to make it colourful (d) symbols are heavier
15. 15.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) motor (c) switch (d) capacitor
16. 16.Which drawing is the symbol for a cell? (a) a dot where wires meet (b) one tall, one short bar (c) a circle with V inside (d) a circle with an X in it
17. 17.Which drawing is the symbol for a wire? (a) two or more cell symbols (b) a plain rectangle (c) a straight line (d) a long and a short line
18. 18.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) wavy lines (c) straight lines (d) dotted circles
19. 19.Which drawing is the symbol for a diode? (a) triangle against a bar (b) a straight line (c) a circle with an X in it (d) a circle with V inside
20. 20.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
21. 21.True or false: a circle with A inside is the symbol for a motor. (a) True (b) False
22. 22.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) resistor (b) switch (c) wire (d) bulb
23. 23.True or false: a dot where wires meet is the symbol for an ammeter. (a) False (b) True
24. 24.True or false: a straight line is the symbol for a resistor. (a) True (b) False
25. 25.Which drawing is the symbol for a cell? (a) a long and a short line (b) triangle, bar and arrows (c) a line lifted at a gap (d) many long-short pairs
26. 26.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) wire (b) bulb (c) battery (d) switch
27. 27.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) resistor (b) LED (c) switch (d) voltmeter
28. 28.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
29. 29.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
30. 30.True or false: a line lifted at a gap is the symbol for a resistor. (a) True (b) False
31. 31.True or false: a circle with V inside is the symbol for an LED. (a) True (b) False
32. 32.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) battery (b) junction (c) voltmeter (d) wire
33. 33.Which drawing is the symbol for an ammeter? (a) one tall, one short bar (b) a circle with V inside (c) a circle with A inside (d) two or more cell symbols
34. 34.Which drawing is the symbol for a resistor? (a) a circle with M inside (b) many long-short pairs (c) a small empty box (d) a line lifted at a gap
35. 35.True or false: a circle with an X in it is the symbol for a diode. (a) True (b) False
36. 36.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) bulb (b) LED (c) junction (d) motor
37. 37.True or false: a circle with an X in it is the symbol for a wire. (a) True (b) False
38. 38.Which drawing is the symbol for a capacitor? (a) a circle with a cross (b) two equal parallel lines (c) triangle against a bar (d) a circle with an X in it
39. 39.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) diode (c) switch (d) LED
40. 40.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True

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