Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 138 · 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 bulb? (a) a circle with V inside (b) two equal parallel lines (c) a dot where wires meet (d) a circle with a cross
2. 2.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) quick and clear for all (c) symbols are heavier (d) to hide the circuit
3. 3.True or false: a long and a short line is the symbol for a switch. (a) True (b) False
4. 4.True or false: a straight line is the symbol for an ammeter. (a) True (b) False
5. 5.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) motor (b) capacitor (c) junction (d) ammeter
6. 6.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) the longer line (c) both lines (d) neither line
7. 7.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) voltmeter (c) bulb (d) switch
8. 8.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) switch (b) bulb (c) cell (d) diode
9. 9.True or false: many long-short pairs is the symbol for a motor. (a) True (b) False
10. 10.Which drawing is the symbol for a junction? (a) two or more cell symbols (b) a dot where wires meet (c) a circle with a cross (d) a long and a short line
11. 11.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) resistor (b) wire (c) cell (d) LED
12. 12.True or false: triangle against a bar is the symbol for a diode. (a) True (b) False
13. 13.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) wavy lines (c) little stars (d) straight lines
14. 14.True or false: a line lifted at a gap is the symbol for a motor. (a) False (b) True
15. 15.Which drawing is the symbol for a voltmeter? (a) two or more cell symbols (b) triangle against a bar (c) a small empty box (d) a circle with V inside
16. 16.Which drawing is the symbol for a switch? (a) a dot where wires meet (b) two or more cell symbols (c) one tall, one short bar (d) a line lifted at a gap
17. 17.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
18. 18.True or false: two or more cell symbols is the symbol for a motor. (a) True (b) False
19. 19.Which drawing is the symbol for a cell? (a) triangle, bar and arrows (b) a dot where wires meet (c) a line lifted at a gap (d) a long and a short line
20. 20.Which drawing is the symbol for a battery? (a) one tall, one short bar (b) a circle with V inside (c) triangle, bar and arrows (d) two or more cell symbols
21. 21.True or false: one tall, one short bar is the symbol for a voltmeter. (a) True (b) False
22. 22.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) junction (b) wire (c) LED (d) bulb
23. 23.Which drawing is the symbol for a motor? (a) a circle with a cross (b) triangle, bar and arrows (c) a circle with M inside (d) a plain rectangle
24. 24.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) battery (b) bulb (c) diode (d) resistor
25. 25.True or false: a circle with a cross is the symbol for an ammeter. (a) True (b) False
26. 26.True or false: a small empty box is the symbol for a bulb. (a) False (b) True
27. 27.Which drawing is the symbol for a diode? (a) a circle with M inside (b) a circle with A inside (c) one tall, one short bar (d) triangle against a bar
28. 28.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) diode (b) resistor (c) switch (d) wire
29. 29.Which drawing is the symbol for a resistor? (a) a long and a short line (b) a small empty box (c) triangle, bar and arrows (d) a circle with A inside
30. 30.True or false: a circle with A inside is the symbol for a voltmeter. (a) False (b) True
31. 31.Which drawing is the symbol for a bulb? (a) a straight line (b) a circle with an X in it (c) a line lifted at a gap (d) triangle, bar and arrows
32. 32.Which drawing is the symbol for a battery? (a) a circle with a cross (b) a circle with V inside (c) many long-short pairs (d) a small empty box
33. 33.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
34. 34.True or false: one tall, one short bar is the symbol for a diode. (a) True (b) False
35. 35.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
36. 36.Which drawing is the symbol for an LED? (a) a circle with an X in it (b) a circle with A inside (c) triangle, bar and arrows (d) a line lifted at a gap
37. 37.True or false: a circle with V inside is the symbol for a junction. (a) False (b) True
38. 38.Which drawing is the symbol for a resistor? (a) a circle with an X in it (b) a plain rectangle (c) many long-short pairs (d) two or more cell symbols
39. 39.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) voltmeter (b) resistor (c) cell (d) ammeter
40. 40.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) motor (b) cell (c) diode (d) ammeter

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