if i renember correctly its b
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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Kelly walks 5km.
1 km = 1000m.
5x1000 = 5000meters
1.5h = 90minutes
90miX60 = 5400s
10m/54s
And so on
Answer:
Attract
Explanation:
According to the properties of charge, the bodies having unlike charges attract each other and the bodies having like charges repel each other.
As the toy is initially electrically neutral, so as it is divided into two pieces, then according to the conservation of charge, the one piece having positive charge and the other piece having negative charge. As they are unlike charges so they attract each other.
