Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 572 · 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 junction? (a) many long-short pairs (b) a dot where wires meet (c) a long and a short line (d) two equal parallel lines
2. 2.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
3. 3.Which drawing is the symbol for a wire? (a) a straight line (b) a circle with A inside (c) triangle, bar and arrows (d) triangle against a bar
4. 4.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) neither line (c) the shorter line (d) the longer line
5. 5.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) battery (b) cell (c) voltmeter (d) resistor
6. 6.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) LED (b) capacitor (c) junction (d) cell
7. 7.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) resistor (b) cell (c) battery (d) ammeter
8. 8.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) straight lines (c) little stars (d) dotted circles
9. 9.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) cell (b) LED (c) resistor (d) switch
10. 10.Which drawing is the symbol for a switch? (a) a circle with a cross (b) a small empty box (c) a line lifted at a gap (d) a dot where wires meet
11. 11.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) symbols are heavier (c) to hide the circuit (d) quick and clear for all
12. 12.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) junction (b) switch (c) wire (d) diode
13. 13.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) voltmeter (b) wire (c) battery (d) cell
14. 14.Which drawing is the symbol for a voltmeter? (a) one tall, one short bar (b) many long-short pairs (c) two equal parallel lines (d) a circle with V inside
15. 15.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) diode (c) capacitor (d) switch
16. 16.Which drawing is the symbol for a diode? (a) triangle against a bar (b) one tall, one short bar (c) a line lifted at a gap (d) a circle with V inside
17. 17.True or false: a plain rectangle is the symbol for an LED. (a) False (b) True
18. 18.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) switch (b) diode (c) bulb (d) resistor
19. 19.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) motor (b) ammeter (c) cell (d) LED
20. 20.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) capacitor (b) ammeter (c) bulb (d) resistor
21. 21.Which drawing is the symbol for an ammeter? (a) one tall, one short bar (b) a line lifted at a gap (c) a long and a short line (d) a circle with A inside
22. 22.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
23. 23.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
24. 24.True or false: many long-short pairs is the symbol for an LED. (a) False (b) True
25. 25.True or false: a dot where wires meet is the symbol for a cell. (a) True (b) False
26. 26.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) capacitor (c) cell (d) motor
27. 27.Which drawing is the symbol for a resistor? (a) a circle with an X in it (b) one tall, one short bar (c) two or more cell symbols (d) a plain rectangle
28. 28.True or false: two equal parallel lines is the symbol for a battery. (a) True (b) False
29. 29.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
30. 30.True or false: triangle against a bar is the symbol for a motor. (a) True (b) False
31. 31.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) ammeter (b) resistor (c) capacitor (d) battery
32. 32.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
33. 33.Which drawing is the symbol for a motor? (a) a circle with M inside (b) a circle with A inside (c) two or more cell symbols (d) a circle with V inside
34. 34.True or false: a circle with a cross is the symbol for a motor. (a) False (b) True
35. 35.Which drawing is the symbol for a cell? (a) a dot where wires meet (b) a small empty box (c) a circle with V inside (d) one tall, one short bar
36. 36.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) resistor (c) bulb (d) ammeter
37. 37.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
38. 38.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) switch (b) diode (c) resistor (d) voltmeter
39. 39.True or false: a line lifted at a gap is the symbol for a junction. (a) False (b) True
40. 40.Which drawing is the symbol for a battery? (a) a circle with M inside (b) triangle against a bar (c) two or more cell symbols (d) one tall, one short bar

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