Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 887 · 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 a circle with M inside? (a) motor (b) cell (c) voltmeter (d) resistor
2. 2.Which drawing is the symbol for an LED? (a) triangle, bar and arrows (b) a plain rectangle (c) a circle with M inside (d) many long-short pairs
3. 3.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
4. 4.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) to hide the circuit (c) to make it colourful (d) symbols are heavier
5. 5.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
6. 6.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) wavy lines (c) dotted circles (d) little stars
7. 7.True or false: a long and a short line is the symbol for a capacitor. (a) False (b) True
8. 8.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) switch (b) cell (c) ammeter (d) bulb
9. 9.Which drawing is the symbol for a cell? (a) one tall, one short bar (b) two or more cell symbols (c) triangle, bar and arrows (d) a circle with V inside
10. 10.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) capacitor (b) battery (c) cell (d) wire
11. 11.Which drawing is the symbol for a wire? (a) a line lifted at a gap (b) two or more cell symbols (c) a small empty box (d) a straight line
12. 12.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) cell (c) motor (d) capacitor
13. 13.True or false: one tall, one short bar is the symbol for a switch. (a) True (b) False
14. 14.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
15. 15.True or false: a circle with V inside is the symbol for a cell. (a) True (b) False
16. 16.✏️ In a circuit diagram, which part is drawn as a straight line? (a) bulb (b) battery (c) wire (d) junction
17. 17.True or false: a line lifted at a gap is the symbol for an ammeter. (a) False (b) True
18. 18.Which drawing is the symbol for a capacitor? (a) a line lifted at a gap (b) a circle with M inside (c) a straight line (d) two equal parallel lines
19. 19.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) resistor (b) ammeter (c) switch (d) LED
20. 20.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) both lines (c) neither line (d) the longer line
21. 21.True or false: a circle with A inside is the symbol for a cell. (a) False (b) True
22. 22.Which drawing is the symbol for a diode? (a) two or more cell symbols (b) a straight line (c) a dot where wires meet (d) triangle against a bar
23. 23.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) bulb (b) capacitor (c) junction (d) cell
24. 24.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
25. 25.True or false: a straight line is the symbol for a diode. (a) False (b) True
26. 26.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) cell (b) bulb (c) battery (d) ammeter
27. 27.True or false: a long and a short line is the symbol for an ammeter. (a) False (b) True
28. 28.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) switch (b) diode (c) ammeter (d) battery
29. 29.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
30. 30.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) LED (b) voltmeter (c) cell (d) switch
31. 31.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
32. 32.Which drawing is the symbol for a resistor? (a) two equal parallel lines (b) a circle with A inside (c) one tall, one short bar (d) a plain rectangle
33. 33.Which drawing is the symbol for a switch? (a) a circle with V inside (b) a line lifted at a gap (c) a plain rectangle (d) triangle against a bar
34. 34.True or false: a straight line is the symbol for a wire. (a) True (b) False
35. 35.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) resistor (b) battery (c) switch (d) bulb
36. 36.True or false: a line lifted at a gap is the symbol for a motor. (a) True (b) False
37. 37.Which drawing is the symbol for an ammeter? (a) a circle with V inside (b) two or more cell symbols (c) a circle with an X in it (d) a circle with A inside
38. 38.True or false: a line lifted at a gap is the symbol for a resistor. (a) False (b) True
39. 39.True or false: a circle with a cross is the symbol for a motor. (a) False (b) True
40. 40.Which drawing is the symbol for a motor? (a) one tall, one short bar (b) a plain rectangle (c) a circle with M inside (d) a line lifted at a gap

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