Answer:
a) 
, b) 
, c) 
Explanation:
a) Let assume that electric motor is single-phase and operates in DC-mode, so that mechanical power output is:
The current delivered to the motor is:
b) The power delivered to the motor is:
The energy delivered to the motor during 3.80 hours of operation is:
c) The cost to run the motor is:
The time required (in s) for the magnetic field to decrease to zero from its maximum value is 1.2 x 10⁻⁶ s.
<h3>
Faraday's law of electromagnetic induction</h3>
Faraday's first law of electromagnetic induction states, “Whenever a conductor is placed in a varying magnetic field, an electromotive force is induced.
emf = NdФ/dt
emf = NBA/t
where;
- N is number of turns of the coil
- A is area of the coil
- B is magnetic field
- t is time
The time required (in s) for the magnetic field to decrease to zero from its maximum value is calculated as follows;
t = NBA/emf
t = (16 x 1.1 x 10⁻³ x 3.75 x 10⁻⁴) / (5.5)
t = 1.2 x 10⁻⁶ s
Thus, the time required (in s) for the magnetic field to decrease to zero from its maximum value is 1.2 x 10⁻⁶ s.
Learn more about magnetic field here: brainly.com/question/7802337
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Answer:
B as distance increase force decrease, but it is not a linear relationship.
The scientific unit for speed is kilometers per hour, hope this helps
Answer:
Constructed cladograms all typically share certain key features: Root – The initial ancestor common to all organisms within the cladogram (incoming line shows it originates from a larger clade) Nodes – Each node corresponds to a hypothetical common ancestor that speciated to give rise to two (or more) daughter taxa.
Explanation:
