Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 355 · 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 longer line (b) both lines (c) neither line (d) the shorter line
2. 2.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) cell (b) ammeter (c) wire (d) switch
3. 3.Which drawing is the symbol for a bulb? (a) a long and a short line (b) two or more cell symbols (c) a circle with an X in it (d) a plain rectangle
4. 4.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) symbols are heavier (c) to make it colourful (d) quick and clear for all
5. 5.Which drawing is the symbol for a voltmeter? (a) triangle against a bar (b) triangle, bar and arrows (c) a circle with V inside (d) a long and a short line
6. 6.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) capacitor (b) battery (c) bulb (d) diode
7. 7.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) little stars (c) straight lines (d) dotted circles
8. 8.Which drawing is the symbol for a battery? (a) a circle with M inside (b) triangle against a bar (c) many long-short pairs (d) a straight line
9. 9.Which drawing is the symbol for a motor? (a) a circle with M inside (b) a circle with V inside (c) a straight line (d) a line lifted at a gap
10. 10.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) switch (b) cell (c) motor (d) capacitor
11. 11.Which drawing is the symbol for a wire? (a) two or more cell symbols (b) a long and a short line (c) many long-short pairs (d) a straight line
12. 12.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) bulb (b) ammeter (c) cell (d) battery
13. 13.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) LED (b) resistor (c) diode (d) battery
14. 14.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
15. 15.True or false: a circle with M inside is the symbol for a motor. (a) True (b) False
16. 16.True or false: a small empty box is the symbol for a bulb. (a) True (b) False
17. 17.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
18. 18.✏️ In a circuit diagram, which part is drawn as a straight line? (a) wire (b) capacitor (c) cell (d) resistor
19. 19.Which drawing is the symbol for a battery? (a) a long and a short line (b) a circle with M inside (c) a circle with a cross (d) two or more cell symbols
20. 20.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
21. 21.True or false: triangle against a bar is the symbol for a battery. (a) False (b) True
22. 22.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) junction (b) resistor (c) ammeter (d) diode
23. 23.Which drawing is the symbol for a switch? (a) one tall, one short bar (b) two or more cell symbols (c) a line lifted at a gap (d) a long and a short line
24. 24.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) motor (b) junction (c) LED (d) battery
25. 25.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) switch (b) cell (c) battery (d) resistor
26. 26.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) junction (b) voltmeter (c) switch (d) LED
27. 27.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) resistor (b) cell (c) junction (d) bulb
28. 28.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) cell (b) battery (c) resistor (d) ammeter
29. 29.Which drawing is the symbol for an ammeter? (a) a plain rectangle (b) a circle with A inside (c) a circle with a cross (d) triangle, bar and arrows
30. 30.True or false: a circle with a cross is the symbol for a junction. (a) True (b) False
31. 31.True or false: a straight line is the symbol for a resistor. (a) True (b) False
32. 32.True or false: many long-short pairs is the symbol for a bulb. (a) True (b) False
33. 33.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
34. 34.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
35. 35.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) wire (b) bulb (c) motor (d) cell
36. 36.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) LED (b) voltmeter (c) capacitor (d) motor
37. 37.True or false: a circle with V inside is the symbol for a resistor. (a) True (b) False
38. 38.Which drawing is the symbol for a capacitor? (a) one tall, one short bar (b) triangle, bar and arrows (c) triangle against a bar (d) two equal parallel lines
39. 39.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
40. 40.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False

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