Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 77 · 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.Which drawing is the symbol for a switch? (a) a circle with A inside (b) many long-short pairs (c) a line lifted at a gap (d) a small empty box
2. 2.Which drawing is the symbol for a capacitor? (a) a straight line (b) a circle with a cross (c) triangle, bar and arrows (d) two equal parallel lines
3. 3.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) wire (b) battery (c) bulb (d) diode
4. 4.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) switch (c) motor (d) resistor
5. 5.Which drawing is the symbol for a resistor? (a) a circle with A inside (b) one tall, one short bar (c) a line lifted at a gap (d) a small empty box
6. 6.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) battery (b) switch (c) capacitor (d) motor
7. 7.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
8. 8.True or false: a circle with an X in it is the symbol for a switch. (a) False (b) True
9. 9.✏️ In a circuit diagram, which part is drawn as a straight line? (a) battery (b) wire (c) ammeter (d) junction
10. 10.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
11. 11.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) both lines (c) the longer line (d) the shorter line
12. 12.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) voltmeter (c) resistor (d) ammeter
13. 13.Which drawing is the symbol for an LED? (a) triangle against a bar (b) a plain rectangle (c) a circle with an X in it (d) triangle, bar and arrows
14. 14.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) diode (b) cell (c) motor (d) wire
15. 15.Which drawing is the symbol for an ammeter? (a) a dot where wires meet (b) a circle with an X in it (c) a small empty box (d) a circle with A inside
16. 16.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) cell (b) junction (c) voltmeter (d) bulb
17. 17.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) battery (b) LED (c) diode (d) cell
18. 18.Which drawing is the symbol for a battery? (a) many long-short pairs (b) a small empty box (c) triangle, bar and arrows (d) a circle with V inside
19. 19.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) many long-short pairs (c) a circle with a cross (d) one tall, one short bar
20. 20.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) to hide the circuit (c) symbols are heavier (d) quick and clear for all
21. 21.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) battery (b) motor (c) switch (d) diode
22. 22.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) resistor (b) LED (c) battery (d) voltmeter
23. 23.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) diode (b) voltmeter (c) ammeter (d) LED
24. 24.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) diode (b) junction (c) cell (d) resistor
25. 25.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) LED (b) switch (c) junction (d) diode
26. 26.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) resistor (b) diode (c) ammeter (d) switch
27. 27.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
28. 28.Which drawing is the symbol for a bulb? (a) a circle with a cross (b) many long-short pairs (c) a circle with M inside (d) two or more cell symbols
29. 29.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) bulb (b) voltmeter (c) motor (d) battery
30. 30.Which drawing is the symbol for a diode? (a) a circle with V inside (b) triangle against a bar (c) a line lifted at a gap (d) many long-short pairs
31. 31.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) capacitor (b) diode (c) switch (d) junction
32. 32.True or false: two equal parallel lines is the symbol for a voltmeter. (a) False (b) True
33. 33.True or false: a circle with V inside is the symbol for a resistor. (a) False (b) True
34. 34.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
35. 35.Which drawing is the symbol for a junction? (a) many long-short pairs (b) a circle with V inside (c) triangle against a bar (d) a dot where wires meet
36. 36.True or false: two or more cell symbols is the symbol for a motor. (a) True (b) False
37. 37.Which drawing is the symbol for a bulb? (a) a circle with an X in it (b) a long and a short line (c) many long-short pairs (d) a small empty box
38. 38.Which drawing is the symbol for a wire? (a) two or more cell symbols (b) triangle against a bar (c) a straight line (d) a circle with a cross
39. 39.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) wavy lines (c) little stars (d) straight lines
40. 40.True or false: a line lifted at a gap is the symbol for a cell. (a) False (b) True

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