Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 959 · 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 switch? (a) a circle with a cross (b) two equal parallel lines (c) a line lifted at a gap (d) two or more cell symbols
2. 2.Which drawing is the symbol for a capacitor? (a) a long and a short line (b) two equal parallel lines (c) one tall, one short bar (d) a straight line
3. 3.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) little stars (c) straight lines (d) wavy lines
4. 4.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
5. 5.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) to hide the circuit (c) to make it colourful (d) quick and clear for all
6. 6.Which drawing is the symbol for a motor? (a) a circle with M inside (b) a circle with A inside (c) a dot where wires meet (d) a straight line
7. 7.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) diode (b) switch (c) cell (d) junction
8. 8.True or false: a line lifted at a gap is the symbol for a motor. (a) False (b) True
9. 9.Which drawing is the symbol for a wire? (a) a circle with a cross (b) a line lifted at a gap (c) a circle with A inside (d) a straight line
10. 10.✏️ In a circuit diagram, which part is drawn as a straight line? (a) wire (b) capacitor (c) voltmeter (d) resistor
11. 11.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
12. 12.True or false: a circle with an X in it is the symbol for a junction. (a) True (b) False
13. 13.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
14. 14.True or false: a small empty box is the symbol for an LED. (a) False (b) True
15. 15.Which drawing is the symbol for an ammeter? (a) a circle with V inside (b) a long and a short line (c) a circle with A inside (d) a line lifted at a gap
16. 16.True or false: triangle against a bar is the symbol for a diode. (a) True (b) False
17. 17.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) diode (b) battery (c) cell (d) resistor
18. 18.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) cell (b) wire (c) switch (d) diode
19. 19.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the shorter line (c) the longer line (d) neither line
20. 20.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) ammeter (b) diode (c) resistor (d) bulb
21. 21.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
22. 22.True or false: a circle with V inside is the symbol for a capacitor. (a) True (b) False
23. 23.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) voltmeter (b) battery (c) motor (d) resistor
24. 24.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) motor (b) bulb (c) voltmeter (d) ammeter
25. 25.True or false: a circle with a cross is the symbol for a resistor. (a) True (b) False
26. 26.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) voltmeter (b) LED (c) cell (d) wire
27. 27.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) cell (b) motor (c) diode (d) LED
28. 28.Which drawing is the symbol for a battery? (a) a plain rectangle (b) many long-short pairs (c) a circle with a cross (d) a small empty box
29. 29.Which drawing is the symbol for a battery? (a) triangle, bar and arrows (b) a small empty box (c) two or more cell symbols (d) one tall, one short bar
30. 30.True or false: a circle with A inside is the symbol for a bulb. (a) False (b) True
31. 31.Which drawing is the symbol for a diode? (a) a dot where wires meet (b) a plain rectangle (c) triangle against a bar (d) a long and a short line
32. 32.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
33. 33.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
34. 34.Which drawing is the symbol for a cell? (a) many long-short pairs (b) one tall, one short bar (c) a circle with a cross (d) a dot where wires meet
35. 35.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) wire (b) battery (c) capacitor (d) switch
36. 36.True or false: a plain rectangle is the symbol for a switch. (a) True (b) False
37. 37.Which drawing is the symbol for a junction? (a) a dot where wires meet (b) a circle with a cross (c) two or more cell symbols (d) a circle with M inside
38. 38.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) diode (b) battery (c) bulb (d) motor
39. 39.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
40. 40.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) switch (b) battery (c) voltmeter (d) ammeter

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