Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 836 · 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.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) symbols are heavier (c) to make it colourful (d) to hide the circuit
2. 2.Which drawing is the symbol for a cell? (a) a circle with V inside (b) many long-short pairs (c) one tall, one short bar (d) a plain rectangle
3. 3.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) wavy lines (c) dotted circles (d) straight lines
4. 4.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
5. 5.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
6. 6.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
7. 7.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) LED (b) motor (c) diode (d) cell
8. 8.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) battery (b) LED (c) junction (d) voltmeter
9. 9.Which drawing is the symbol for a battery? (a) triangle, bar and arrows (b) a plain rectangle (c) many long-short pairs (d) a straight line
10. 10.True or false: a long and a short line is the symbol for a wire. (a) True (b) False
11. 11.Which drawing is the symbol for a capacitor? (a) a circle with a cross (b) a plain rectangle (c) two or more cell symbols (d) two equal parallel lines
12. 12.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) both lines (c) the longer line (d) neither line
13. 13.Which drawing is the symbol for a wire? (a) a small empty box (b) triangle, bar and arrows (c) two or more cell symbols (d) a straight line
14. 14.True or false: a straight line is the symbol for a wire. (a) True (b) False
15. 15.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) battery (b) junction (c) bulb (d) resistor
16. 16.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
17. 17.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) ammeter (c) switch (d) capacitor
18. 18.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) resistor (b) capacitor (c) ammeter (d) cell
19. 19.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) two or more cell symbols (c) a long and a short line (d) one tall, one short bar
20. 20.True or false: a small empty box is the symbol for a battery. (a) False (b) True
21. 21.✏️ In a circuit diagram, which part is drawn as a straight line? (a) ammeter (b) capacitor (c) switch (d) wire
22. 22.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
23. 23.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) a dot where wires meet (c) triangle, bar and arrows (d) a circle with A inside
24. 24.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) resistor (b) cell (c) switch (d) diode
25. 25.Which drawing is the symbol for a bulb? (a) a circle with A inside (b) a long and a short line (c) one tall, one short bar (d) a circle with a cross
26. 26.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) switch (b) junction (c) ammeter (d) voltmeter
27. 27.True or false: a circle with V inside is the symbol for a diode. (a) True (b) False
28. 28.Which drawing is the symbol for an LED? (a) a line lifted at a gap (b) a circle with M inside (c) a circle with an X in it (d) triangle, bar and arrows
29. 29.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) junction (b) bulb (c) diode (d) voltmeter
30. 30.Which drawing is the symbol for a resistor? (a) a long and a short line (b) a circle with an X in it (c) a plain rectangle (d) two equal parallel lines
31. 31.True or false: a circle with an X in it is the symbol for a junction. (a) True (b) False
32. 32.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) junction (b) voltmeter (c) motor (d) resistor
33. 33.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) capacitor (b) battery (c) ammeter (d) diode
34. 34.True or false: two or more cell symbols is the symbol for a bulb. (a) True (b) False
35. 35.True or false: two equal parallel lines is the symbol for a bulb. (a) True (b) False
36. 36.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) wire (b) switch (c) ammeter (d) capacitor
37. 37.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) diode (b) battery (c) switch (d) capacitor
38. 38.Which drawing is the symbol for a bulb? (a) a long and a short line (b) two equal parallel lines (c) a circle with V inside (d) a circle with an X in it
39. 39.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
40. 40.Which drawing is the symbol for a diode? (a) a circle with A inside (b) a plain rectangle (c) a circle with V inside (d) triangle against a bar

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