Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 203 · 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 many long-short pairs? (a) diode (b) LED (c) cell (d) battery
2. 2.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) ammeter (b) cell (c) battery (d) switch
3. 3.True or false: a circle with V inside is the symbol for a resistor. (a) False (b) True
4. 4.Which drawing is the symbol for a battery? (a) a small empty box (b) a circle with an X in it (c) two or more cell symbols (d) a plain rectangle
5. 5.Which drawing is the symbol for a junction? (a) a dot where wires meet (b) one tall, one short bar (c) a circle with an X in it (d) a circle with a cross
6. 6.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
7. 7.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) the shorter line (c) the longer line (d) both lines
8. 8.Which drawing is the symbol for an LED? (a) a small empty box (b) triangle, bar and arrows (c) a straight line (d) a circle with M inside
9. 9.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) battery (b) bulb (c) LED (d) voltmeter
10. 10.True or false: one tall, one short bar is the symbol for a diode. (a) False (b) True
11. 11.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
12. 12.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) little stars (c) wavy lines (d) straight lines
13. 13.Which drawing is the symbol for a cell? (a) one tall, one short bar (b) a straight line (c) a plain rectangle (d) a circle with M inside
14. 14.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) wire (c) switch (d) capacitor
15. 15.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) LED (b) battery (c) wire (d) resistor
16. 16.Which drawing is the symbol for a cell? (a) two or more cell symbols (b) a circle with V inside (c) a circle with M inside (d) a long and a short line
17. 17.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) resistor (b) junction (c) motor (d) cell
18. 18.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) resistor (b) battery (c) voltmeter (d) bulb
19. 19.✏️ 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
20. 20.Which drawing is the symbol for a motor? (a) triangle, bar and arrows (b) a long and a short line (c) a small empty box (d) a circle with M inside
21. 21.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
22. 22.Which drawing is the symbol for a voltmeter? (a) a long and a short line (b) one tall, one short bar (c) a circle with V inside (d) a circle with a cross
23. 23.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) resistor (b) diode (c) voltmeter (d) capacitor
24. 24.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) bulb (b) battery (c) motor (d) capacitor
25. 25.True or false: one tall, one short bar is the symbol for a switch. (a) True (b) False
26. 26.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) switch (b) diode (c) resistor (d) battery
27. 27.True or false: a straight line is the symbol for a wire. (a) False (b) True
28. 28.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) LED (b) resistor (c) wire (d) switch
29. 29.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) capacitor (c) bulb (d) battery
30. 30.True or false: a line lifted at a gap is the symbol for an LED. (a) True (b) False
31. 31.Which drawing is the symbol for a wire? (a) a straight line (b) a dot where wires meet (c) a line lifted at a gap (d) many long-short pairs
32. 32.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
33. 33.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
34. 34.Which drawing is the symbol for a switch? (a) two or more cell symbols (b) a line lifted at a gap (c) two equal parallel lines (d) many long-short pairs
35. 35.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) many long-short pairs
36. 36.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
37. 37.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
38. 38.True or false: a circle with M inside is the symbol for a bulb. (a) True (b) False
39. 39.True or false: a small empty box is the symbol for a cell. (a) True (b) False
40. 40.Which drawing is the symbol for a diode? (a) a circle with M inside (b) a circle with an X in it (c) triangle against a bar (d) two or more cell symbols

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