Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 72 · 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.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) symbols are heavier (c) to hide the circuit (d) to make it colourful
2. 2.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
3. 3.Which drawing is the symbol for an ammeter? (a) a circle with a cross (b) a circle with an X in it (c) a circle with A inside (d) a line lifted at a gap
4. 4.✏️ In a circuit diagram, which part is drawn as a straight line? (a) battery (b) LED (c) wire (d) diode
5. 5.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) diode (b) motor (c) switch (d) LED
6. 6.Which drawing is the symbol for a diode? (a) a circle with a cross (b) one tall, one short bar (c) triangle against a bar (d) a plain rectangle
7. 7.Which drawing is the symbol for an LED? (a) a long and a short line (b) triangle, bar and arrows (c) one tall, one short bar (d) a straight line
8. 8.Which drawing is the symbol for a junction? (a) a dot where wires meet (b) two or more cell symbols (c) a plain rectangle (d) a circle with V inside
9. 9.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) diode (b) bulb (c) resistor (d) wire
10. 10.Which drawing is the symbol for a capacitor? (a) two or more cell symbols (b) a circle with A inside (c) two equal parallel lines (d) a small empty box
11. 11.Which drawing is the symbol for a battery? (a) two or more cell symbols (b) a dot where wires meet (c) triangle, bar and arrows (d) a circle with M inside
12. 12.True or false: a circle with V inside is the symbol for an ammeter. (a) False (b) True
13. 13.Which drawing is the symbol for a resistor? (a) two or more cell symbols (b) a small empty box (c) triangle, bar and arrows (d) two equal parallel lines
14. 14.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) wavy lines (c) little stars (d) straight lines
15. 15.Which drawing is the symbol for a resistor? (a) a dot where wires meet (b) a plain rectangle (c) triangle, bar and arrows (d) a circle with an X in it
16. 16.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) battery (b) junction (c) wire (d) resistor
17. 17.Which drawing is the symbol for a motor? (a) many long-short pairs (b) a circle with an X in it (c) two equal parallel lines (d) a circle with M inside
18. 18.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) battery (b) bulb (c) diode (d) cell
19. 19.True or false: triangle against a bar is the symbol for a diode. (a) True (b) False
20. 20.True or false: a circle with A inside is the symbol for an ammeter. (a) True (b) False
21. 21.True or false: a plain rectangle is the symbol for a bulb. (a) True (b) False
22. 22.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) switch (b) cell (c) ammeter (d) battery
23. 23.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) voltmeter (b) ammeter (c) motor (d) wire
24. 24.Which drawing is the symbol for a voltmeter? (a) a small empty box (b) a circle with V inside (c) a circle with M inside (d) two equal parallel lines
25. 25.True or false: two or more cell symbols is the symbol for a wire. (a) True (b) False
26. 26.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) neither line (c) both lines (d) the shorter line
27. 27.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) junction (b) battery (c) capacitor (d) LED
28. 28.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
29. 29.True or false: two or more cell symbols is the symbol for a motor. (a) False (b) True
30. 30.Which drawing is the symbol for a cell? (a) triangle against a bar (b) one tall, one short bar (c) a dot where wires meet (d) two or more cell symbols
31. 31.Which drawing is the symbol for a switch? (a) a circle with a cross (b) triangle, bar and arrows (c) a plain rectangle (d) a line lifted at a gap
32. 32.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) bulb (b) cell (c) battery (d) resistor
33. 33.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) switch (b) voltmeter (c) motor (d) junction
34. 34.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
35. 35.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) LED (b) voltmeter (c) diode (d) capacitor
36. 36.Which drawing is the symbol for a bulb? (a) a circle with a cross (b) a circle with A inside (c) a long and a short line (d) a plain rectangle
37. 37.True or false: many long-short pairs is the symbol for a capacitor. (a) True (b) False
38. 38.True or false: triangle against a bar is the symbol for a capacitor. (a) True (b) False
39. 39.True or false: a straight line is the symbol for a capacitor. (a) True (b) False
40. 40.Which drawing is the symbol for a battery? (a) a plain rectangle (b) many long-short pairs (c) a circle with an X in it (d) triangle, bar and arrows

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