Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 835 · 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 triangle against a bar? (a) LED (b) diode (c) voltmeter (d) resistor
2. 2.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) battery (b) LED (c) ammeter (d) wire
3. 3.Which drawing is the symbol for a junction? (a) a circle with M inside (b) a dot where wires meet (c) a line lifted at a gap (d) a circle with A inside
4. 4.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) neither line (c) the shorter line (d) the longer line
5. 5.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) ammeter (c) battery (d) resistor
6. 6.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) resistor (b) motor (c) wire (d) ammeter
7. 7.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) wire (b) voltmeter (c) motor (d) junction
8. 8.Which drawing is the symbol for a bulb? (a) a plain rectangle (b) one tall, one short bar (c) a circle with an X in it (d) triangle, bar and arrows
9. 9.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) LED (b) battery (c) switch (d) bulb
10. 10.True or false: a straight line is the symbol for a wire. (a) False (b) True
11. 11.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) switch (c) resistor (d) wire
12. 12.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) bulb (b) diode (c) cell (d) junction
13. 13.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) battery (b) resistor (c) bulb (d) junction
14. 14.True or false: triangle, bar and arrows is the symbol for a junction. (a) False (b) True
15. 15.True or false: one tall, one short bar is the symbol for a wire. (a) True (b) False
16. 16.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) resistor (b) switch (c) voltmeter (d) ammeter
17. 17.Which drawing is the symbol for a switch? (a) triangle against a bar (b) a line lifted at a gap (c) a plain rectangle (d) a circle with a cross
18. 18.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
19. 19.Which drawing is the symbol for a capacitor? (a) a circle with an X in it (b) two equal parallel lines (c) a circle with V inside (d) triangle against a bar
20. 20.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) one tall, one short bar (c) a plain rectangle (d) a line lifted at a gap
21. 21.True or false: a circle with M inside is the symbol for a motor. (a) True (b) False
22. 22.Which drawing is the symbol for a battery? (a) a small empty box (b) triangle, bar and arrows (c) two or more cell symbols (d) triangle against a bar
23. 23.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
24. 24.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) dotted circles (c) little stars (d) straight lines
25. 25.✏️ 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
26. 26.Which drawing is the symbol for a motor? (a) a circle with M inside (b) many long-short pairs (c) triangle, bar and arrows (d) a long and a short line
27. 27.Which drawing is the symbol for a voltmeter? (a) many long-short pairs (b) a dot where wires meet (c) a circle with A inside (d) a circle with V inside
28. 28.True or false: a circle with V inside is the symbol for an LED. (a) True (b) False
29. 29.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) resistor (c) cell (d) voltmeter
30. 30.True or false: a circle with A inside is the symbol for a battery. (a) False (b) True
31. 31.Which drawing is the symbol for an LED? (a) a line lifted at a gap (b) a circle with A inside (c) triangle, bar and arrows (d) a circle with an X in it
32. 32.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) voltmeter (b) capacitor (c) cell (d) bulb
33. 33.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) cell (b) resistor (c) junction (d) switch
34. 34.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) switch (b) capacitor (c) diode (d) resistor
35. 35.True or false: a long and a short line is the symbol for a capacitor. (a) True (b) False
36. 36.Which drawing is the symbol for a bulb? (a) a long and a short line (b) a circle with A inside (c) a circle with a cross (d) many long-short pairs
37. 37.True or false: a line lifted at a gap is the symbol for a motor. (a) True (b) False
38. 38.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) neither line (c) both lines (d) the shorter line
39. 39.True or false: one tall, one short bar is the symbol for a resistor. (a) True (b) False
40. 40.Which drawing is the symbol for a diode? (a) a circle with V inside (b) two or more cell symbols (c) a small empty box (d) triangle against a bar

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