Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 554 · 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) both lines (b) the longer line (c) the shorter line (d) neither line
2. 2.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) dotted circles (c) straight lines (d) wavy lines
3. 3.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) switch (b) resistor (c) motor (d) cell
4. 4.True or false: a circle with A inside is the symbol for an LED. (a) True (b) False
5. 5.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) diode (b) cell (c) voltmeter (d) battery
6. 6.True or false: a dot where wires meet is the symbol for a junction. (a) True (b) False
7. 7.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) resistor (b) bulb (c) cell (d) diode
8. 8.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
9. 9.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) bulb (b) ammeter (c) voltmeter (d) diode
10. 10.Which drawing is the symbol for a switch? (a) a long and a short line (b) a plain rectangle (c) a line lifted at a gap (d) a circle with A inside
11. 11.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) cell (b) diode (c) bulb (d) ammeter
12. 12.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) battery (b) switch (c) junction (d) LED
13. 13.True or false: a circle with an X in it is the symbol for an ammeter. (a) False (b) True
14. 14.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) wire (b) LED (c) cell (d) bulb
15. 15.Which drawing is the symbol for an ammeter? (a) two equal parallel lines (b) a circle with A inside (c) a plain rectangle (d) one tall, one short bar
16. 16.Which drawing is the symbol for a bulb? (a) a circle with a cross (b) one tall, one short bar (c) many long-short pairs (d) triangle, bar and arrows
17. 17.Which drawing is the symbol for a battery? (a) a line lifted at a gap (b) many long-short pairs (c) triangle against a bar (d) a circle with an X in it
18. 18.Which drawing is the symbol for a wire? (a) a long and a short line (b) many long-short pairs (c) a circle with M inside (d) a straight line
19. 19.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) motor (b) bulb (c) cell (d) battery
20. 20.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) ammeter (b) switch (c) diode (d) voltmeter
21. 21.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
22. 22.True or false: many long-short pairs is the symbol for a resistor. (a) True (b) False
23. 23.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) LED (b) diode (c) capacitor (d) cell
24. 24.True or false: a circle with A inside is the symbol for a battery. (a) True (b) False
25. 25.✏️ 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
26. 26.True or false: triangle against a bar is the symbol for a bulb. (a) False (b) True
27. 27.Which drawing is the symbol for a motor? (a) a circle with M inside (b) a plain rectangle (c) one tall, one short bar (d) a line lifted at a gap
28. 28.True or false: a circle with M inside is the symbol for a voltmeter. (a) False (b) True
29. 29.True or false: a straight line is the symbol for a bulb. (a) False (b) True
30. 30.Which drawing is the symbol for a junction? (a) a circle with V inside (b) triangle, bar and arrows (c) a dot where wires meet (d) a straight line
31. 31.True or false: two equal parallel lines is the symbol for a wire. (a) True (b) False
32. 32.Which drawing is the symbol for a battery? (a) two equal parallel lines (b) one tall, one short bar (c) two or more cell symbols (d) a straight line
33. 33.Which drawing is the symbol for a resistor? (a) many long-short pairs (b) a small empty box (c) a circle with V inside (d) a straight line
34. 34.True or false: a long and a short line is the symbol for a junction. (a) True (b) False
35. 35.True or false: a long and a short line is the symbol for an LED. (a) True (b) False
36. 36.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) LED (b) bulb (c) battery (d) wire
37. 37.Which drawing is the symbol for a voltmeter? (a) a circle with an X in it (b) triangle, bar and arrows (c) a circle with V inside (d) triangle against a bar
38. 38.✏️ In a circuit diagram, which part is drawn as a straight line? (a) wire (b) bulb (c) motor (d) diode
39. 39.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) resistor (b) junction (c) bulb (d) diode
40. 40.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) cell (b) capacitor (c) wire (d) battery

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