What amount of heat is released to a resistance of 20 ohms in 1 minute at a current of 15 amperes?

R = 20 ohms.
t = 1 min = 60 s.
I = 15 A.
Q -?
According to the Joule-Lenz law, the amount of heat Q is determined by the formula: Q = I ^ 2 * R * t.
Where I is the current in the conductor, R is the resistance of the conductor, t is the time the current passes through the conductor.
Q = (15 A) ^ 2 * 20 Ohm * 60 s = 270,000 J = 270 kJ.
Answer: Q = 270,000 J of thermal energy will be released in the conductor in 1 minute.



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