A 120-V motor has mechanical power output of 2.50 hp. It is 90.0% efficient in converting power that it takes in by electrical transmission into mechanical power. a) Find the current in the motor b) Find the enery delievered to the motor by electrical transmission in 3.00h of operation c) If the electrical company charges $).30/kWh, what does it cost to run the motor for 3.00h?
Ohm's law
Ohm’s law is a prominent concept in physics and electronics. It gives the relation between the current and the voltage. It is used to analyze and construct electrical circuits. Ohm's law states that the voltage across a conductor is directly proportional to the current flowing through it.
Path of Least Resistance
In a series of alternate pathways, the direction of least resistance is the actual or metaphorical route that offers the least resistance to forwarding motion by a given individual or body.
A 120-V motor has mechanical power output of 2.50 hp. It is 90.0% efficient in converting power that it takes in by electrical transmission into mechanical power.
a) Find the current in the motor
b) Find the enery delievered to the motor by electrical transmission in 3.00h of operation
c) If the electrical company charges $).30/kWh, what does it cost to run the motor for 3.00h?
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