If two bulbs of wattage $25$ and $30$, each rated at $220\, volts$, are connected in series with a $440$ $volt$ supply, which bulb will fuse
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(a) In series, ${P_{Consumed}} \propto \frac{1}{{{P_{Rated}}}} \propto {V_{Applied}}$
i.e. more voltage appears on smaller wattage bulb, so $25\, W$ bulb will fuse
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