The robots have released 360 kJ of heat in 2 hours. Determine the current in the circuit if the resistance of the tile spial is 50 ohms.
| January 4, 2021 | education
Given:
t = 2h = 7200s
Q = 360kJ = 360000 J
R = 50 Ohm
Find: I =?
Decision:
Q = I ^ 2 * R * t (Joule-Lenz law)
I = √Q / R * t
I = √360000J / 50 Ohm * 7200s
I = 1 A
Answer: I = 1 A
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