Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 963 · 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) symbols are heavier (b) quick and clear for all (c) to hide the circuit (d) to make it colourful
2. 2.Which drawing is the symbol for a battery? (a) two or more cell symbols (b) a circle with an X in it (c) a circle with A inside (d) one tall, one short bar
3. 3.True or false: a circle with V inside is the symbol for a bulb. (a) True (b) False
4. 4.Which drawing is the symbol for a resistor? (a) a circle with M inside (b) a circle with A inside (c) a small empty box (d) triangle, bar and arrows
5. 5.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) LED (b) resistor (c) diode (d) capacitor
6. 6.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) ammeter (b) cell (c) bulb (d) resistor
7. 7.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
8. 8.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) switch (b) cell (c) capacitor (d) battery
9. 9.✏️ In a circuit diagram, which part is drawn as a straight line? (a) voltmeter (b) wire (c) junction (d) battery
10. 10.Which drawing is the symbol for a capacitor? (a) many long-short pairs (b) a long and a short line (c) two equal parallel lines (d) a plain rectangle
11. 11.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) junction (b) resistor (c) ammeter (d) motor
12. 12.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) straight lines (c) dotted circles (d) little stars
13. 13.Which drawing is the symbol for a resistor? (a) a circle with M inside (b) one tall, one short bar (c) a plain rectangle (d) a straight line
14. 14.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) the shorter line (c) neither line (d) both lines
15. 15.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) resistor (c) bulb (d) cell
16. 16.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) switch (b) ammeter (c) motor (d) cell
17. 17.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
18. 18.Which drawing is the symbol for a voltmeter? (a) a dot where wires meet (b) a circle with V inside (c) a circle with A inside (d) one tall, one short bar
19. 19.Which drawing is the symbol for a junction? (a) a long and a short line (b) a dot where wires meet (c) one tall, one short bar (d) many long-short pairs
20. 20.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) wire (b) capacitor (c) junction (d) cell
21. 21.True or false: two equal parallel lines is the symbol for a resistor. (a) True (b) False
22. 22.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) junction (b) ammeter (c) LED (d) voltmeter
23. 23.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) battery (b) switch (c) cell (d) wire
24. 24.Which drawing is the symbol for an ammeter? (a) triangle against a bar (b) many long-short pairs (c) a circle with A inside (d) a dot where wires meet
25. 25.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
26. 26.Which drawing is the symbol for a switch? (a) many long-short pairs (b) a line lifted at a gap (c) triangle, bar and arrows (d) a straight line
27. 27.Which drawing is the symbol for a motor? (a) a straight line (b) a circle with M inside (c) a long and a short line (d) a plain rectangle
28. 28.True or false: a straight line is the symbol for a switch. (a) True (b) False
29. 29.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
30. 30.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) switch (b) battery (c) cell (d) voltmeter
31. 31.True or false: two or more cell symbols is the symbol for a bulb. (a) False (b) True
32. 32.True or false: two or more cell symbols is the symbol for a cell. (a) False (b) True
33. 33.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) capacitor (b) battery (c) LED (d) motor
34. 34.True or false: triangle against a bar is the symbol for a cell. (a) False (b) True
35. 35.Which drawing is the symbol for a cell? (a) one tall, one short bar (b) many long-short pairs (c) a dot where wires meet (d) a plain rectangle
36. 36.True or false: one tall, one short bar is the symbol for a motor. (a) True (b) False
37. 37.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) diode (b) capacitor (c) voltmeter (d) cell
38. 38.True or false: a circle with V inside is the symbol for a voltmeter. (a) True (b) False
39. 39.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) to hide the circuit (c) symbols are heavier (d) quick and clear for all
40. 40.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) battery (b) motor (c) switch (d) diode

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