Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 771 · 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.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
2. 2.True or false: two or more cell symbols is the symbol for a diode. (a) False (b) True
3. 3.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) dotted circles (c) little stars (d) straight lines
4. 4.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) LED (b) ammeter (c) resistor (d) battery
5. 5.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) junction (b) resistor (c) wire (d) motor
6. 6.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) diode (b) cell (c) bulb (d) resistor
7. 7.True or false: a circle with V inside is the symbol for a wire. (a) False (b) True
8. 8.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) switch (b) bulb (c) LED (d) voltmeter
9. 9.Which drawing is the symbol for a voltmeter? (a) triangle against a bar (b) many long-short pairs (c) a circle with V inside (d) triangle, bar and arrows
10. 10.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) motor (b) capacitor (c) switch (d) junction
11. 11.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) to make it colourful (c) quick and clear for all (d) to hide the circuit
12. 12.Which drawing is the symbol for a resistor? (a) triangle, bar and arrows (b) a small empty box (c) a circle with M inside (d) two or more cell symbols
13. 13.Which drawing is the symbol for a switch? (a) a straight line (b) a circle with V inside (c) a circle with a cross (d) a line lifted at a gap
14. 14.True or false: triangle against a bar is the symbol for a resistor. (a) False (b) True
15. 15.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) LED (b) battery (c) voltmeter (d) bulb
16. 16.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) wire (b) diode (c) bulb (d) capacitor
17. 17.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) both lines (c) neither line (d) the longer line
18. 18.True or false: two or more cell symbols is the symbol for a resistor. (a) True (b) False
19. 19.True or false: a circle with an X in it is the symbol for a diode. (a) False (b) True
20. 20.True or false: triangle against a bar is the symbol for a switch. (a) True (b) False
21. 21.Which drawing is the symbol for a junction? (a) a dot where wires meet (b) a small empty box (c) one tall, one short bar (d) triangle, bar and arrows
22. 22.True or false: many long-short pairs is the symbol for a cell. (a) False (b) True
23. 23.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) capacitor (b) diode (c) ammeter (d) switch
24. 24.True or false: two equal parallel lines is the symbol for a motor. (a) False (b) True
25. 25.True or false: a circle with a cross is the symbol for a resistor. (a) True (b) False
26. 26.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
27. 27.True or false: many long-short pairs is the symbol for a bulb. (a) False (b) True
28. 28.True or false: a line lifted at a gap is the symbol for a resistor. (a) False (b) True
29. 29.True or false: a straight line is the symbol for a switch. (a) True (b) False
30. 30.Which drawing is the symbol for an LED? (a) two equal parallel lines (b) triangle, bar and arrows (c) one tall, one short bar (d) many long-short pairs
31. 31.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) motor (b) ammeter (c) diode (d) wire
32. 32.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
33. 33.Which drawing is the symbol for a diode? (a) a line lifted at a gap (b) one tall, one short bar (c) a long and a short line (d) triangle against a bar
34. 34.Which drawing is the symbol for a motor? (a) a circle with a cross (b) a line lifted at a gap (c) a dot where wires meet (d) a circle with M inside
35. 35.Which drawing is the symbol for a battery? (a) a dot where wires meet (b) one tall, one short bar (c) a small empty box (d) two or more cell symbols
36. 36.Which drawing is the symbol for a battery? (a) many long-short pairs (b) a line lifted at a gap (c) a long and a short line (d) a circle with M inside
37. 37.True or false: a circle with A inside is the symbol for a voltmeter. (a) True (b) False
38. 38.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) capacitor (b) cell (c) voltmeter (d) diode
39. 39.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) LED (b) battery (c) ammeter (d) resistor
40. 40.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) switch (b) ammeter (c) battery (d) LED

Free electronics lessons, practice and worksheets at talentjr.in/electronics-for-kids