Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 491 · 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) to hide the circuit (b) symbols are heavier (c) quick and clear for all (d) to make it colourful
2. 2.True or false: many long-short pairs is the symbol for an LED. (a) False (b) True
3. 3.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) resistor (b) junction (c) battery (d) ammeter
4. 4.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) motor (b) bulb (c) ammeter (d) LED
5. 5.True or false: one tall, one short bar is the symbol for a battery. (a) True (b) False
6. 6.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
7. 7.Which drawing is the symbol for a junction? (a) a dot where wires meet (b) a plain rectangle (c) a small empty box (d) a line lifted at a gap
8. 8.True or false: a long and a short line is the symbol for a switch. (a) True (b) False
9. 9.Which drawing is the symbol for a voltmeter? (a) a line lifted at a gap (b) a circle with V inside (c) a circle with A inside (d) triangle against a bar
10. 10.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) both lines (c) the shorter line (d) neither line
11. 11.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) resistor (b) diode (c) switch (d) capacitor
12. 12.True or false: a circle with V inside is the symbol for a resistor. (a) False (b) True
13. 13.Which drawing is the symbol for an ammeter? (a) a line lifted at a gap (b) two equal parallel lines (c) one tall, one short bar (d) a circle with A inside
14. 14.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) wire (b) junction (c) resistor (d) diode
15. 15.✏️ In a circuit diagram, which part is drawn as a straight line? (a) wire (b) junction (c) bulb (d) battery
16. 16.Which drawing is the symbol for a wire? (a) two equal parallel lines (b) triangle against a bar (c) a circle with a cross (d) a straight line
17. 17.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) wavy lines (c) dotted circles (d) straight lines
18. 18.True or false: a long and a short line is the symbol for a resistor. (a) True (b) False
19. 19.True or false: a straight line is the symbol for a wire. (a) True (b) False
20. 20.True or false: a circle with an X in it is the symbol for an LED. (a) False (b) True
21. 21.True or false: a circle with A inside is the symbol for a voltmeter. (a) False (b) True
22. 22.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
23. 23.Which drawing is the symbol for a capacitor? (a) a circle with an X in it (b) triangle, bar and arrows (c) two equal parallel lines (d) a dot where wires meet
24. 24.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) switch (b) bulb (c) wire (d) junction
25. 25.Which drawing is the symbol for a cell? (a) triangle against a bar (b) a line lifted at a gap (c) a long and a short line (d) a dot where wires meet
26. 26.Which drawing is the symbol for an LED? (a) a long and a short line (b) a small empty box (c) one tall, one short bar (d) triangle, bar and arrows
27. 27.Which drawing is the symbol for a motor? (a) a circle with M inside (b) a circle with V inside (c) a dot where wires meet (d) a circle with A inside
28. 28.True or false: a dot where wires meet is the symbol for an ammeter. (a) False (b) True
29. 29.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) motor (b) ammeter (c) resistor (d) diode
30. 30.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) voltmeter (b) diode (c) cell (d) battery
31. 31.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
32. 32.True or false: two or more cell symbols is the symbol for a motor. (a) False (b) True
33. 33.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
34. 34.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
35. 35.Which drawing is the symbol for a battery? (a) triangle against a bar (b) a plain rectangle (c) a dot where wires meet (d) many long-short pairs
36. 36.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
37. 37.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) motor (b) voltmeter (c) capacitor (d) diode
38. 38.Which drawing is the symbol for a bulb? (a) a circle with an X in it (b) a circle with V inside (c) triangle against a bar (d) a straight line
39. 39.Which drawing is the symbol for a switch? (a) a circle with a cross (b) a line lifted at a gap (c) a circle with an X in it (d) a small empty box
40. 40.True or false: a circle with an X in it is the symbol for a motor. (a) True (b) False

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