A 5?, 10?, and 15? resistor are connected in series with a 120 V battery with ne

Question

A 5?, 10?, and 15? resistor are connected in series with a 120 V battery with negligible resistance. What is the potential difference across the 5 ? resistor?       A 5?, 10?, and 15? resistor are connected in series with a 120 V battery with negligible resistance. What is the potential difference across the 5 ? resistor?       A 5?, 10?, and 15? resistor are connected in series with a 120 V battery with negligible resistance. What is the potential difference across the 5 ? resistor?       A 5?, 10?, and 15? resistor are connected in series with a 120 V battery with negligible resistance. What is the potential difference across the 5 ? resistor?    A 5?, 10?, and 15? resistor are connected in series with a 120 V battery with negligible resistance. What is the potential difference across the 5 ? resistor?

Explanation / Answer

In series R = 5+10+15 = 30 ?

current i = v/R = 120/30 = 4 A

PD across 5? is = ixR1 = 4x5 = 20 V

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