By using power, the electric energy is 20304 kJ.
We need to know about power to solve this problem. Power is the energy dissipated because of resistance. The magnitude of power is proportional to current and voltage. It can be determined as
P = I . V
where P is power, I is current and V is voltage.
The electric energy can be calculated by this equation
W = P . t
where W is electric energy and t is time
From the question above, we know that
P = 9.4 kW = 9.4 x 10³ W
t = 36 min = 2160 seconds
By substituting the following parameters, we get
W = P . t
W = 9.4 x 10³ . 2160
W = 20304 x 10³ joules
W = 20304 kJ
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