Electronics Worksheet: Series Circuits
Remember (One path for all): One path: if any bulb is removed or broken, no bulb glows. Identical bulbs share the voltage: each gets battery volts ÷ number of bulbs. More bulbs in series → each gets less → all glow dimmer.
NameDateTime takenScore ___ / 40
- 1.🔗 Series or parallel circuit: “bulbs share the voltage”? (a) series (b) parallel
- 2.💡 5 identical bulbs are joined in series with a battery and a closed switch on the main wire. Bulb 5 is taken out of its holder. Does bulb 2 glow? (a) No (b) Yes
- 3.True or false: “one bulb out, all go out” is true of a parallel circuit. (a) True (b) False
- 4.True or false: “one out, the rest glow” is true of a series circuit. (a) True (b) False
- 5.🔗 Series or parallel circuit: “a break stops every bulb”? (a) parallel (b) series
- 6.True or false: “a break stops every bulb” is true of a series circuit. (a) True (b) False
- 7.💡 2 identical bulbs are joined in series with a 6 V battery (ideal wires). How many volts does each bulb get? =
- 8.True or false: “a single current path” is true of a parallel circuit. (a) True (b) False
- 9.🔗 Series or parallel circuit: “each gets the full volts”? (a) series (b) parallel
- 10.💡 A battery lights 3 identical bulbs joined in series. One more identical bulb is added in series. How do the bulbs glow now? (a) the same (b) brighter (c) dimmer
- 11.💡 2 identical bulbs are joined in series with a battery and a closed switch on the main wire. Bulb 1 is taken out of its holder. Does bulb 2 glow? (a) No (b) Yes
- 12.💡 Old festival light strings went fully dark when one bulb failed. How were they joined? (a) by Wi-Fi (b) in series (c) not joined (d) in parallel
- 13.True or false: “own switch for each bulb” is true of a series circuit. (a) False (b) True
- 14.💡 In a series circuit, how many paths does the current have? (a) two (b) one for each bulb (c) one (d) none
- 15.🔗 Series or parallel circuit: “a single current path”? (a) series (b) parallel
- 16.💡 5 identical bulbs are joined in series with a 7.5 V battery (ideal wires). How many volts does each bulb get? =
- 17.💡 5 identical bulbs are joined in series with a 5 V battery (ideal wires). How many volts does each bulb get? =
- 18.💡 5 identical bulbs are joined in series with a battery and a closed switch on the main wire. All the bulbs are in place. Does bulb 2 glow? (a) No (b) Yes
- 19.True or false: “own switch for each bulb” is true of a parallel circuit. (a) False (b) True
- 20.💡 6 identical bulbs are joined in series with a battery and a closed switch on the main wire. Bulb 6 is taken out of its holder. How many bulbs glow?
- 21.💡 4 identical bulbs are joined in series with a battery and a closed switch on the main wire. Bulb 3 is taken out of its holder. Does bulb 1 glow? (a) Yes (b) No
- 22.True or false: “bulbs share the voltage” is true of a parallel circuit. (a) False (b) True
- 23.🔗 Series or parallel circuit: “one out, the rest glow”? (a) parallel (b) series
- 24.💡 A battery lights 2 identical bulbs joined in series. One more identical bulb is added in series. How do the bulbs glow now? (a) the same (b) brighter (c) dimmer
- 25.💡 4 identical bulbs are joined in series with a battery and a closed switch on the main wire. All the bulbs are in place. Does bulb 1 glow? (a) No (b) Yes
- 26.🔗 Series or parallel circuit: “used in house wiring”? (a) parallel (b) series
- 27.💡 5 identical bulbs are joined in series with a 20 V battery (ideal wires). How many volts does each bulb get? =
- 28.💡 2 identical bulbs are joined in series with a battery and a closed switch on the main wire. Bulb 2 is taken out of its holder. Does bulb 1 glow? (a) No (b) Yes
- 29.🔗 Series or parallel circuit: “many paths for current”? (a) series (b) parallel
- 30.💡 3 identical bulbs are joined in series with a battery and a closed switch on the main wire. All the bulbs are in place. How many bulbs glow?
- 31.💡 2 identical bulbs are joined in series with a 5 V battery (ideal wires). How many volts does each bulb get? =
- 32.🔗 Series or parallel circuit: “one bulb out, all go out”? (a) series (b) parallel
- 33.💡 A battery lights 4 identical bulbs joined in series. One more identical bulb is added in series. How do the bulbs glow now? (a) dimmer (b) the same (c) brighter
- 34.True or false: “used in house wiring” is true of a series circuit. (a) False (b) True
- 35.True or false: “many paths for current” is true of a series circuit. (a) True (b) False
- 36.💡 3 identical bulbs are joined in series with a 3 V battery (ideal wires). How many volts does each bulb get? =
- 37.💡 2 identical bulbs are joined in series with a battery and a closed switch on the main wire. All the bulbs are in place. Does bulb 1 glow? (a) Yes (b) No
- 38.💡 4 identical bulbs are joined in series with a 4 V battery (ideal wires). How many volts does each bulb get? =
- 39.💡 4 identical bulbs are joined in series with a 6 V battery (ideal wires). How many volts does each bulb get? =
- 40.True or false: “each gets the full volts” is true of a parallel circuit. (a) True (b) False
Answer key
- series
- No
- False
- False
- series
- True
- 3
- False
- parallel
- dimmer
- No
- in series
- False
- one
- series
- 1.5
- 1
- Yes
- True
- 0
- No
- False
- parallel
- dimmer
- Yes
- parallel
- 4
- No
- parallel
- 3
- 2.5
- series
- dimmer
- False
- False
- 1
- Yes
- 1
- 1.5
- True
Free electronics lessons, practice and worksheets at talentjr.in/electronics-for-kids