A potential difference of 120.0 V is measured acrossn a light bulb. The light bulb is left on for 30 min allowing a charge of 900 C to flow through it. How much energy is converted to light and heat?  And then a charge of 50.0 C has a change in potential energy of 1.00  103 J as it flows through a resistor. What is the potential difference across the resistor

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