Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 353 · 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, wires are usually drawn as … (a) dotted circles (b) wavy lines (c) little stars (d) straight lines
2. 2.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) ammeter (b) wire (c) junction (d) bulb
3. 3.Which drawing is the symbol for a battery? (a) many long-short pairs (b) one tall, one short bar (c) a straight line (d) a long and a short line
4. 4.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) diode (b) LED (c) switch (d) bulb
5. 5.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) resistor (b) bulb (c) capacitor (d) diode
6. 6.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) the longer line (c) both lines (d) neither line
7. 7.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) LED (b) capacitor (c) battery (d) wire
8. 8.True or false: one tall, one short bar is the symbol for an LED. (a) False (b) True
9. 9.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) diode (b) bulb (c) voltmeter (d) wire
10. 10.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) quick and clear for all (c) to hide the circuit (d) to make it colourful
11. 11.Which drawing is the symbol for an LED? (a) a circle with A inside (b) triangle, bar and arrows (c) a plain rectangle (d) triangle against a bar
12. 12.Which drawing is the symbol for a capacitor? (a) a small empty box (b) a circle with V inside (c) two equal parallel lines (d) a dot where wires meet
13. 13.Which drawing is the symbol for a voltmeter? (a) a dot where wires meet (b) a circle with A inside (c) a circle with an X in it (d) a circle with V inside
14. 14.True or false: triangle against a bar is the symbol for a diode. (a) True (b) False
15. 15.True or false: a circle with a cross is the symbol for a junction. (a) False (b) True
16. 16.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) capacitor (b) LED (c) wire (d) cell
17. 17.True or false: a long and a short line is the symbol for a diode. (a) True (b) False
18. 18.✏️ In a circuit diagram, which part is drawn as a straight line? (a) wire (b) bulb (c) switch (d) voltmeter
19. 19.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) bulb (b) capacitor (c) resistor (d) ammeter
20. 20.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) resistor (b) capacitor (c) ammeter (d) wire
21. 21.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
22. 22.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
23. 23.True or false: a long and a short line is the symbol for a resistor. (a) False (b) True
24. 24.True or false: a long and a short line is the symbol for a bulb. (a) False (b) True
25. 25.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) wire (b) motor (c) junction (d) LED
26. 26.Which drawing is the symbol for a resistor? (a) a plain rectangle (b) two or more cell symbols (c) a dot where wires meet (d) a circle with M inside
27. 27.Which drawing is the symbol for a switch? (a) one tall, one short bar (b) two or more cell symbols (c) a circle with a cross (d) a line lifted at a gap
28. 28.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) junction (b) battery (c) switch (d) motor
29. 29.Which drawing is the symbol for a bulb? (a) one tall, one short bar (b) a circle with a cross (c) a plain rectangle (d) a circle with M inside
30. 30.Which drawing is the symbol for an ammeter? (a) two or more cell symbols (b) a circle with A inside (c) a circle with V inside (d) one tall, one short bar
31. 31.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) battery (b) resistor (c) cell (d) capacitor
32. 32.Which drawing is the symbol for a battery? (a) a circle with an X in it (b) two or more cell symbols (c) triangle, bar and arrows (d) a small empty box
33. 33.True or false: one tall, one short bar is the symbol for a battery. (a) True (b) False
34. 34.True or false: triangle against a bar is the symbol for a voltmeter. (a) True (b) False
35. 35.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
36. 36.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) battery (b) resistor (c) capacitor (d) cell
37. 37.Which drawing is the symbol for a cell? (a) a circle with M inside (b) a long and a short line (c) two or more cell symbols (d) a plain rectangle
38. 38.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) switch (b) LED (c) diode (d) resistor
39. 39.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) both lines (c) the shorter line (d) the longer line
40. 40.True or false: a straight line is the symbol for a wire. (a) False (b) True

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