If you want to lift a 5-kg box to a height of 2 meters, how much wok must be done
2 answers:
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Answer:
Current amplitude, I = 5.57 A
Explanation:
It is given that,
Effective resistance, R = 22 ohms
Inductive reactance, L = 72 ohms
Voltage of the alternating source, V = 420 volt
The total impedance of the RL circuit is given by :
Z = 75.28 ohms
From Ohm's law,
I = 5.57 A
So, the current amplitude of the electric motor is 5.57 A. Hence, this is the required solution.