Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 495 · 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 cell? (a) a long and a short line (b) triangle, bar and arrows (c) a dot where wires meet (d) a small empty box
2. 2.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) quick and clear for all (c) symbols are heavier (d) to hide the circuit
3. 3.True or false: two equal parallel lines is the symbol for a switch. (a) False (b) True
4. 4.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 straight line (d) two or more cell symbols
5. 5.True or false: one tall, one short bar is the symbol for a diode. (a) False (b) True
6. 6.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) little stars (c) wavy lines (d) straight lines
7. 7.True or false: triangle against a bar is the symbol for a wire. (a) True (b) False
8. 8.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) neither line (c) the shorter line (d) both lines
9. 9.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) one tall, one short bar (c) triangle against a bar (d) a circle with M inside
10. 10.Which drawing is the symbol for an ammeter? (a) a plain rectangle (b) two equal parallel lines (c) a circle with A inside (d) triangle against a bar
11. 11.Which drawing is the symbol for a wire? (a) a straight line (b) triangle against a bar (c) two equal parallel lines (d) a circle with M inside
12. 12.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) resistor (b) bulb (c) switch (d) capacitor
13. 13.Which drawing is the symbol for an LED? (a) a dot where wires meet (b) triangle, bar and arrows (c) triangle against a bar (d) a circle with V inside
14. 14.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
15. 15.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
16. 16.Which drawing is the symbol for a motor? (a) a circle with an X in it (b) triangle against a bar (c) a circle with M inside (d) one tall, one short bar
17. 17.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
18. 18.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
19. 19.True or false: a dot where wires meet is the symbol for a voltmeter. (a) True (b) False
20. 20.Which drawing is the symbol for a diode? (a) a dot where wires meet (b) a circle with an X in it (c) triangle against a bar (d) a small empty box
21. 21.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) cell (b) diode (c) bulb (d) voltmeter
22. 22.True or false: two equal parallel lines is the symbol for an LED. (a) True (b) False
23. 23.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) motor (b) LED (c) ammeter (d) resistor
24. 24.✏️ In a circuit diagram, which part is drawn as a straight line? (a) switch (b) wire (c) junction (d) resistor
25. 25.True or false: a straight line is the symbol for a wire. (a) False (b) True
26. 26.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) cell (b) switch (c) battery (d) capacitor
27. 27.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) capacitor (b) resistor (c) cell (d) bulb
28. 28.Which drawing is the symbol for a bulb? (a) two equal parallel lines (b) triangle against a bar (c) many long-short pairs (d) a circle with an X in it
29. 29.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) cell (b) voltmeter (c) LED (d) battery
30. 30.Which drawing is the symbol for a resistor? (a) a circle with M inside (b) a circle with a cross (c) triangle, bar and arrows (d) a plain rectangle
31. 31.True or false: a straight line is the symbol for a motor. (a) True (b) False
32. 32.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) bulb (b) battery (c) cell (d) resistor
33. 33.Which drawing is the symbol for a battery? (a) a small empty box (b) a circle with M inside (c) two equal parallel lines (d) many long-short pairs
34. 34.True or false: a line lifted at a gap is the symbol for a battery. (a) True (b) False
35. 35.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) LED (b) capacitor (c) cell (d) battery
36. 36.True or false: a long and a short line is the symbol for a switch. (a) True (b) False
37. 37.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) bulb (b) junction (c) diode (d) motor
38. 38.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) wire (b) battery (c) switch (d) ammeter
39. 39.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
40. 40.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) diode (b) motor (c) switch (d) battery

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