Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 457 · 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 resistor? (a) many long-short pairs (b) a plain rectangle (c) a circle with M inside (d) a circle with a cross
2. 2.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) symbols are heavier (c) to make it colourful (d) to hide the circuit
3. 3.Which drawing is the symbol for a capacitor? (a) triangle, bar and arrows (b) two equal parallel lines (c) a circle with a cross (d) a long and a short line
4. 4.True or false: a circle with a cross is the symbol for a wire. (a) False (b) True
5. 5.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the shorter line (c) neither line (d) the longer line
6. 6.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
7. 7.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) cell (b) wire (c) voltmeter (d) motor
8. 8.Which drawing is the symbol for a bulb? (a) a circle with a cross (b) triangle, bar and arrows (c) many long-short pairs (d) a long and a short line
9. 9.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) junction (b) switch (c) battery (d) resistor
10. 10.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) diode (b) resistor (c) ammeter (d) junction
11. 11.Which drawing is the symbol for an LED? (a) a plain rectangle (b) a straight line (c) many long-short pairs (d) triangle, bar and arrows
12. 12.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) wavy lines (c) little stars (d) straight lines
13. 13.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) battery (b) switch (c) motor (d) junction
14. 14.True or false: a straight line is the symbol for a diode. (a) False (b) True
15. 15.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) cell (b) battery (c) capacitor (d) diode
16. 16.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) resistor (b) voltmeter (c) bulb (d) cell
17. 17.True or false: a small empty box is the symbol for a diode. (a) True (b) False
18. 18.Which drawing is the symbol for a resistor? (a) a small empty box (b) one tall, one short bar (c) a line lifted at a gap (d) triangle against a bar
19. 19.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) triangle, bar and arrows (c) two or more cell symbols (d) a circle with an X in it
20. 20.Which drawing is the symbol for a cell? (a) a plain rectangle (b) a circle with M inside (c) one tall, one short bar (d) a circle with A inside
21. 21.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) wire (b) ammeter (c) resistor (d) battery
22. 22.✏️ In a circuit diagram, which part is drawn as a straight line? (a) diode (b) ammeter (c) bulb (d) wire
23. 23.Which drawing is the symbol for a motor? (a) triangle, bar and arrows (b) many long-short pairs (c) a plain rectangle (d) a circle with M inside
24. 24.Which drawing is the symbol for a junction? (a) triangle, bar and arrows (b) a long and a short line (c) two or more cell symbols (d) a dot where wires meet
25. 25.Which drawing is the symbol for a diode? (a) triangle, bar and arrows (b) a dot where wires meet (c) triangle against a bar (d) a circle with M inside
26. 26.True or false: a circle with V inside is the symbol for a voltmeter. (a) True (b) False
27. 27.True or false: one tall, one short bar is the symbol for an ammeter. (a) True (b) False
28. 28.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) a circle with a cross (c) a circle with M inside (d) triangle, bar and arrows
29. 29.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) diode (b) cell (c) LED (d) resistor
30. 30.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) capacitor (b) bulb (c) junction (d) cell
31. 31.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) voltmeter (b) battery (c) switch (d) junction
32. 32.True or false: two equal parallel lines is the symbol for a bulb. (a) True (b) False
33. 33.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) battery (c) ammeter (d) LED
34. 34.True or false: a dot where wires meet is the symbol for a diode. (a) False (b) True
35. 35.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) resistor (b) ammeter (c) LED (d) bulb
36. 36.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) motor (b) voltmeter (c) resistor (d) bulb
37. 37.Which drawing is the symbol for a bulb? (a) one tall, one short bar (b) triangle against a bar (c) a circle with an X in it (d) triangle, bar and arrows
38. 38.True or false: a straight line is the symbol for a motor. (a) False (b) True
39. 39.True or false: a long and a short line is the symbol for a switch. (a) True (b) False
40. 40.Which drawing is the symbol for a wire? (a) a line lifted at a gap (b) a straight line (c) a plain rectangle (d) many long-short pairs

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