Question

*If the three electric bulbs in the circuit are illuminating less than the original, then those bulbs are connected _____ to the electric circuit.*

1️⃣ three bulbs in parallel
2️⃣ three bulbs in series
3️⃣ two bulbs in parallel and one bulb in series
4️⃣ other than these​

Answer 1

Answer:

3. two bulbs in parallel and one bulb in series

Step-by-step explanation:

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Answer 2

Given : the three electric bulbs in the circuit are illuminating less than the original,

To Find :  those bulbs are connected _____ to the electric circuit.*

1️⃣ three bulbs in parallel

2️⃣ three bulbs in series

3️⃣ two bulbs in parallel and one bulb in series

4️⃣ other than these​

Solution:

P = V²/R

three bulbs in parallel - Each will have required voltage hence electric bulbs in the circuit will illuminate as Normal

three bulbs in series :

Voltage will be divided between 3 bulbs

V = V₁ + V₂ + V₃

=> V₁ , V₂ , V₃ < V

Hence  electric bulbs in the circuit will illuminate less than the original

two bulbs in parallel and one bulb in series

if  two Bulbs in series  in parallel with third bulb then third bulb will illuminate as original

if   if two bulbs are in parallel and in series with 3rd   Then electric bulbs in the circuit will illuminate less than the original

Situation is not clear

Hence three bulbs in series is correct answer.

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