A string of winter holiday lights consists of (N) bulbs, each having resistance (R_{mathrm{b}}) (Figure P31.73). Wired

Question:

A string of winter holiday lights consists of $N$ bulbs, each having resistance $R_{\mathrm{b}}$ (Figure P31.73). Wired in parallel with each bulb is a resistor of resistance $R_{p}$. What is the resistance of the string? If one of the bulbs burns out, what happens to the other $N-1$ bulbs?

Data from Figure P31.73

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