Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 41 · 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 A inside? (a) ammeter (b) voltmeter (c) wire (d) battery
2. 2.True or false: a small empty box is the symbol for a wire. (a) True (b) False
3. 3.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) straight lines (c) dotted circles (d) wavy lines
4. 4.Which drawing is the symbol for a diode? (a) two or more cell symbols (b) triangle against a bar (c) a small empty box (d) a straight line
5. 5.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) to make it colourful (c) symbols are heavier (d) to hide the circuit
6. 6.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) capacitor (b) motor (c) wire (d) battery
7. 7.Which drawing is the symbol for a resistor? (a) a circle with an X in it (b) a plain rectangle (c) many long-short pairs (d) a circle with a cross
8. 8.Which drawing is the symbol for a bulb? (a) two equal parallel lines (b) a circle with M inside (c) a line lifted at a gap (d) a circle with a cross
9. 9.Which drawing is the symbol for an LED? (a) one tall, one short bar (b) a dot where wires meet (c) triangle, bar and arrows (d) a long and a short line
10. 10.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) the shorter line (c) the longer line (d) both lines
11. 11.True or false: a straight line is the symbol for a resistor. (a) False (b) True
12. 12.Which drawing is the symbol for a bulb? (a) a circle with M inside (b) a long and a short line (c) a circle with an X in it (d) a circle with V inside
13. 13.Which drawing is the symbol for an ammeter? (a) two equal parallel lines (b) a small empty box (c) a circle with A inside (d) a line lifted at a gap
14. 14.Which drawing is the symbol for a voltmeter? (a) a small empty box (b) a circle with V inside (c) two equal parallel lines (d) triangle against a bar
15. 15.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) junction (c) ammeter (d) motor
16. 16.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
17. 17.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
18. 18.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) diode (b) cell (c) motor (d) battery
19. 19.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) cell (c) bulb (d) switch
20. 20.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) capacitor (b) voltmeter (c) battery (d) motor
21. 21.Which drawing is the symbol for a capacitor? (a) a small empty box (b) triangle against a bar (c) many long-short pairs (d) two equal parallel lines
22. 22.✏️ In a circuit diagram, which part is drawn as a straight line? (a) wire (b) switch (c) resistor (d) voltmeter
23. 23.Which drawing is the symbol for a motor? (a) two or more cell symbols (b) many long-short pairs (c) a circle with M inside (d) one tall, one short bar
24. 24.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) switch (b) bulb (c) ammeter (d) LED
25. 25.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
26. 26.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
27. 27.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
28. 28.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) diode (b) bulb (c) battery (d) capacitor
29. 29.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) ammeter (b) cell (c) wire (d) diode
30. 30.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) motor (b) switch (c) resistor (d) ammeter
31. 31.Which drawing is the symbol for a cell? (a) a plain rectangle (b) one tall, one short bar (c) a circle with an X in it (d) a straight line
32. 32.True or false: a dot where wires meet is the symbol for a battery. (a) False (b) True
33. 33.Which drawing is the symbol for a junction? (a) two or more cell symbols (b) two equal parallel lines (c) a dot where wires meet (d) a plain rectangle
34. 34.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) a circle with an X in it (c) a circle with V inside (d) a circle with a cross
35. 35.Which drawing is the symbol for a wire? (a) one tall, one short bar (b) a circle with a cross (c) a straight line (d) two equal parallel lines
36. 36.True or false: triangle against a bar is the symbol for a wire. (a) True (b) False
37. 37.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) wire (b) motor (c) resistor (d) LED
38. 38.True or false: a plain rectangle is the symbol for a motor. (a) True (b) False
39. 39.True or false: two equal parallel lines is the symbol for an ammeter. (a) False (b) True
40. 40.True or false: two equal parallel lines is the symbol for a cell. (a) False (b) True

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