Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 899 · 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.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) to hide the circuit (c) to make it colourful (d) quick and clear for all
2. 2.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) battery (b) junction (c) switch (d) resistor
3. 3.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) neither line (c) the longer line (d) the shorter line
4. 4.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) a circle with A inside (c) a small empty box (d) a circle with V inside
5. 5.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
6. 6.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
7. 7.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
8. 8.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
9. 9.True or false: many long-short pairs is the symbol for an ammeter. (a) False (b) True
10. 10.True or false: a straight line is the symbol for a wire. (a) True (b) False
11. 11.Which drawing is the symbol for a voltmeter? (a) a circle with M inside (b) a circle with V inside (c) many long-short pairs (d) a circle with an X in it
12. 12.True or false: a straight line is the symbol for a junction. (a) True (b) False
13. 13.True or false: a circle with A inside is the symbol for a resistor. (a) True (b) False
14. 14.True or false: a circle with M inside is the symbol for a junction. (a) True (b) False
15. 15.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) voltmeter (b) capacitor (c) cell (d) diode
16. 16.True or false: two equal parallel lines is the symbol for a diode. (a) False (b) True
17. 17.True or false: a circle with V inside is the symbol for a battery. (a) True (b) False
18. 18.Which drawing is the symbol for a resistor? (a) a circle with V inside (b) many long-short pairs (c) a dot where wires meet (d) a small empty box
19. 19.True or false: two equal parallel lines is the symbol for a motor. (a) False (b) True
20. 20.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) capacitor (b) battery (c) junction (d) wire
21. 21.Which drawing is the symbol for a motor? (a) a plain rectangle (b) a circle with M inside (c) two or more cell symbols (d) a small empty box
22. 22.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) wire (b) battery (c) LED (d) capacitor
23. 23.Which drawing is the symbol for a junction? (a) triangle, bar and arrows (b) two equal parallel lines (c) a circle with an X in it (d) a dot where wires meet
24. 24.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) battery (b) LED (c) cell (d) ammeter
25. 25.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) cell (b) wire (c) ammeter (d) junction
26. 26.Which drawing is the symbol for a bulb? (a) two equal parallel lines (b) a circle with a cross (c) a line lifted at a gap (d) a small empty box
27. 27.Which drawing is the symbol for an LED? (a) a line lifted at a gap (b) a small empty box (c) triangle, bar and arrows (d) many long-short pairs
28. 28.Which drawing is the symbol for an ammeter? (a) a plain rectangle (b) two equal parallel lines (c) a circle with A inside (d) a circle with a cross
29. 29.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) dotted circles (c) wavy lines (d) little stars
30. 30.Which drawing is the symbol for a cell? (a) a long and a short line (b) a circle with a cross (c) triangle against a bar (d) two equal parallel lines
31. 31.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) motor (b) cell (c) voltmeter (d) ammeter
32. 32.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) ammeter (b) diode (c) switch (d) resistor
33. 33.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) switch (b) diode (c) cell (d) wire
34. 34.Which drawing is the symbol for a battery? (a) a long and a short line (b) many long-short pairs (c) triangle against a bar (d) a line lifted at a gap
35. 35.True or false: a dot where wires meet is the symbol for a junction. (a) True (b) False
36. 36.Which drawing is the symbol for a resistor? (a) a plain rectangle (b) triangle against a bar (c) one tall, one short bar (d) a circle with an X in it
37. 37.Which drawing is the symbol for a diode? (a) a circle with an X in it (b) a small empty box (c) a plain rectangle (d) triangle against a bar
38. 38.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) resistor (b) bulb (c) diode (d) capacitor
39. 39.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) motor (b) junction (c) bulb (d) wire
40. 40.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True

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