Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 177 · 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 one tall, one short bar? (a) resistor (b) cell (c) ammeter (d) capacitor
2. 2.True or false: a plain rectangle is the symbol for a voltmeter. (a) False (b) True
3. 3.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) straight lines (c) little stars (d) wavy lines
4. 4.Which drawing is the symbol for a resistor? (a) one tall, one short bar (b) a plain rectangle (c) a dot where wires meet (d) triangle, bar and arrows
5. 5.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) bulb (b) motor (c) diode (d) cell
6. 6.Which drawing is the symbol for a wire? (a) a straight line (b) many long-short pairs (c) triangle against a bar (d) a circle with A inside
7. 7.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) LED (c) junction (d) switch
8. 8.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) cell (b) diode (c) voltmeter (d) junction
9. 9.True or false: many long-short pairs is the symbol for a cell. (a) False (b) True
10. 10.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
11. 11.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) to hide the circuit (c) quick and clear for all (d) symbols are heavier
12. 12.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
13. 13.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) ammeter (b) cell (c) bulb (d) motor
14. 14.Which drawing is the symbol for a capacitor? (a) a small empty box (b) a line lifted at a gap (c) two or more cell symbols (d) two equal parallel lines
15. 15.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
16. 16.Which drawing is the symbol for a switch? (a) a straight line (b) a circle with M inside (c) a line lifted at a gap (d) two or more cell symbols
17. 17.Which drawing is the symbol for an LED? (a) a circle with A inside (b) a plain rectangle (c) triangle, bar and arrows (d) a line lifted at a gap
18. 18.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) both lines (c) the longer line (d) neither line
19. 19.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) capacitor (b) battery (c) ammeter (d) resistor
20. 20.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
21. 21.True or false: many long-short pairs is the symbol for a capacitor. (a) True (b) False
22. 22.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) voltmeter (b) motor (c) ammeter (d) LED
23. 23.Which drawing is the symbol for a diode? (a) triangle against a bar (b) many long-short pairs (c) a circle with an X in it (d) a circle with V inside
24. 24.✏️ In a circuit diagram, which part is drawn as a straight line? (a) cell (b) switch (c) wire (d) battery
25. 25.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) motor (b) resistor (c) switch (d) junction
26. 26.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) capacitor (b) switch (c) diode (d) LED
27. 27.True or false: a line lifted at a gap is the symbol for a bulb. (a) True (b) False
28. 28.True or false: many long-short pairs is the symbol for a junction. (a) True (b) False
29. 29.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) resistor (b) battery (c) bulb (d) wire
30. 30.True or false: a circle with M inside is the symbol for a battery. (a) False (b) True
31. 31.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) LED (b) motor (c) ammeter (d) voltmeter
32. 32.Which drawing is the symbol for a battery? (a) a dot where wires meet (b) a plain rectangle (c) a straight line (d) many long-short pairs
33. 33.Which drawing is the symbol for a voltmeter? (a) a circle with A inside (b) a circle with M inside (c) two equal parallel lines (d) a circle with V inside
34. 34.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
35. 35.True or false: a small empty box is the symbol for a cell. (a) True (b) False
36. 36.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
37. 37.Which drawing is the symbol for a resistor? (a) a circle with A inside (b) a small empty box (c) two or more cell symbols (d) a circle with V inside
38. 38.Which drawing is the symbol for a cell? (a) triangle, bar and arrows (b) a circle with a cross (c) two equal parallel lines (d) one tall, one short bar
39. 39.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
40. 40.True or false: many long-short pairs is the symbol for a switch. (a) True (b) False

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