Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 346 · 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 a circle with an X in it? (a) resistor (b) bulb (c) LED (d) switch
2. 2.Which drawing is the symbol for an LED? (a) a circle with V inside (b) triangle, bar and arrows (c) a line lifted at a gap (d) two or more cell symbols
3. 3.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) wire (b) junction (c) cell (d) ammeter
4. 4.Which drawing is the symbol for an ammeter? (a) a dot where wires meet (b) triangle, bar and arrows (c) a circle with A inside (d) two or more cell symbols
5. 5.Which drawing is the symbol for a capacitor? (a) triangle against a bar (b) a plain rectangle (c) a circle with a cross (d) two equal parallel lines
6. 6.Which drawing is the symbol for a diode? (a) triangle, bar and arrows (b) triangle against a bar (c) a circle with V inside (d) a circle with M inside
7. 7.True or false: one tall, one short bar is the symbol for a voltmeter. (a) False (b) True
8. 8.Which drawing is the symbol for a voltmeter? (a) a plain rectangle (b) a straight line (c) one tall, one short bar (d) a circle with V inside
9. 9.True or false: two or more cell symbols is the symbol for a capacitor. (a) False (b) True
10. 10.True or false: a straight line is the symbol for a switch. (a) False (b) True
11. 11.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) LED (b) diode (c) cell (d) bulb
12. 12.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) bulb (b) resistor (c) cell (d) motor
13. 13.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) little stars (c) dotted circles (d) wavy lines
14. 14.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
15. 15.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) both lines (c) neither line (d) the longer line
16. 16.True or false: two equal parallel lines is the symbol for a capacitor. (a) True (b) False
17. 17.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
18. 18.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) resistor (b) bulb (c) battery (d) ammeter
19. 19.✏️ In a circuit diagram, which part is drawn as a straight line? (a) bulb (b) ammeter (c) wire (d) LED
20. 20.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) to make it colourful (c) quick and clear for all (d) symbols are heavier
21. 21.Which drawing is the symbol for a battery? (a) a line lifted at a gap (b) a straight line (c) triangle, bar and arrows (d) two or more cell symbols
22. 22.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
23. 23.True or false: a small empty box is the symbol for a capacitor. (a) False (b) True
24. 24.True or false: a circle with V inside is the symbol for a voltmeter. (a) True (b) False
25. 25.True or false: a dot where wires meet is the symbol for a junction. (a) True (b) False
26. 26.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) junction (b) diode (c) voltmeter (d) battery
27. 27.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) cell (b) LED (c) voltmeter (d) wire
28. 28.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) resistor (b) wire (c) capacitor (d) bulb
29. 29.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) motor (b) voltmeter (c) junction (d) capacitor
30. 30.Which drawing is the symbol for a bulb? (a) a circle with A inside (b) a circle with a cross (c) many long-short pairs (d) two equal parallel lines
31. 31.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) capacitor (b) resistor (c) junction (d) switch
32. 32.Which drawing is the symbol for a motor? (a) triangle against a bar (b) a circle with M inside (c) one tall, one short bar (d) a long and a short line
33. 33.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) cell (b) voltmeter (c) wire (d) resistor
34. 34.Which drawing is the symbol for a bulb? (a) a small empty box (b) a circle with A inside (c) a circle with M inside (d) a circle with an X in it
35. 35.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) diode (b) switch (c) ammeter (d) motor
36. 36.True or false: a circle with A inside is the symbol for an LED. (a) True (b) False
37. 37.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
38. 38.True or false: a dot where wires meet is the symbol for a diode. (a) False (b) True
39. 39.True or false: a small empty box is the symbol for a voltmeter. (a) False (b) True
40. 40.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) cell (c) wire (d) LED

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