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shutvik [7]
3 years ago
14

At what rate is thermal energy being generated in the 2R-resistor when  = 12 V and R = 3.0 ?

Physics
1 answer:
evablogger [386]3 years ago
8 0

If there's nothing else connected to the battery except the 3-ohm resistor, then the question is defective and the correct answer is not on the list.

With 12v connected across the resistor, the current through the resistor is

I = (E/R) = (12/3) = 4 Amperes.

The power generated inside a resistor is

P = (E x I) = (12v) x (4 A) = 48 watts

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