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Four 60W, 230V bulbs are connected between a phase and a neutral as shown in the diagram. (Line voltage is 230 V)a. How are the bulbs B, and B, are connected? What about B1 and B2? b. Which bulb will glow at 60W power? c. Which bulbs will glow with low power? Why? d. Which bulbs in the circuit can be controlled using separate switches. |
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Answer» a. B, and B, in series B and B in parallel. b. B, and B . c. B and B because each bulb gets less voltage as they are in series. So the bulb’s intensity will be less. d. B and B . |
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