Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 54 · 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 plain rectangle? (a) cell (b) battery (c) motor (d) resistor
2. 2.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
3. 3.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) neither line (c) the longer line (d) both lines
4. 4.✏️ In a circuit diagram, which part is drawn as a straight line? (a) battery (b) motor (c) LED (d) wire
5. 5.Which drawing is the symbol for a diode? (a) triangle against a bar (b) a circle with a cross (c) a straight line (d) a circle with A inside
6. 6.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) one tall, one short bar (c) two equal parallel lines (d) two or more cell symbols
7. 7.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) straight lines (c) dotted circles (d) little stars
8. 8.Which drawing is the symbol for a wire? (a) a dot where wires meet (b) a straight line (c) a circle with a cross (d) a line lifted at a gap
9. 9.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) cell (b) capacitor (c) switch (d) resistor
10. 10.True or false: a long and a short line is the symbol for a voltmeter. (a) True (b) False
11. 11.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) quick and clear for all (c) to make it colourful (d) to hide the circuit
12. 12.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) diode (b) cell (c) junction (d) switch
13. 13.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) ammeter (b) bulb (c) wire (d) resistor
14. 14.True or false: two equal parallel lines is the symbol for a junction. (a) False (b) True
15. 15.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) battery (b) capacitor (c) cell (d) diode
16. 16.Which drawing is the symbol for a bulb? (a) a plain rectangle (b) a long and a short line (c) a circle with an X in it (d) a circle with V inside
17. 17.Which drawing is the symbol for a bulb? (a) triangle against a bar (b) two or more cell symbols (c) a circle with a cross (d) a long and a short line
18. 18.True or false: a circle with V inside is the symbol for a diode. (a) False (b) True
19. 19.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
20. 20.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) wire (b) cell (c) junction (d) switch
21. 21.True or false: a dot where wires meet is the symbol for a diode. (a) False (b) True
22. 22.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) battery (c) resistor (d) LED
23. 23.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
24. 24.Which drawing is the symbol for a capacitor? (a) a circle with A inside (b) one tall, one short bar (c) two equal parallel lines (d) a line lifted at a gap
25. 25.True or false: a circle with M inside is the symbol for a switch. (a) True (b) False
26. 26.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) a long and a short line (c) many long-short pairs (d) a circle with V inside
27. 27.Which drawing is the symbol for a junction? (a) a small empty box (b) two equal parallel lines (c) a long and a short line (d) a dot where wires meet
28. 28.True or false: triangle, bar and arrows is the symbol for a wire. (a) True (b) False
29. 29.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) voltmeter (b) capacitor (c) ammeter (d) switch
30. 30.Which drawing is the symbol for a cell? (a) a long and a short line (b) a circle with a cross (c) a line lifted at a gap (d) a circle with an X in it
31. 31.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
32. 32.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) cell (c) wire (d) voltmeter
33. 33.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
34. 34.True or false: a long and a short line is the symbol for a motor. (a) False (b) True
35. 35.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) capacitor (c) switch (d) voltmeter
36. 36.True or false: a dot where wires meet is the symbol for a junction. (a) True (b) False
37. 37.True or false: two or more cell symbols is the symbol for an LED. (a) False (b) True
38. 38.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
39. 39.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) resistor (b) LED (c) cell (d) battery
40. 40.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) to make it colourful (c) quick and clear for all (d) to hide the circuit

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