Answer:
ε= 7.86 mV, Current: Anti-clockwise
Explanation:
radius= 50 mm
dt= 0.10 s
Initial magnitude of magnetic field= B1 = 200 mT
Final magnitude of magnetic field = B2 = 300 mT
Ф= B. A= BA cosα
Ф1= B1 * A * cosα
Ф1= 
Ф1= 0.00157 Wb
Ф2= B2 * A * cosα
Ф1= 
Ф2=0.00236 Wb
dФ= Ф2 - Ф1
dФ= 0.00236 - 0.00157
dФ= 0.000786 Wb
ε= 
Ф
ε=0.001786/ 0.10
ε=0.00786 v = 7.86 mV
b)
According to lenz's law the induced emf always oppose the cause producing it.
Applied field is out of the paper so the current will flow in anti-clockwise direction to produce north pole pointing toward the paper.
I believe the correct answer from the choices listed above is option 1. The aspect of the personality that exists from birth would be the Id. Id is the only component of personality that is present from birth.<span> It is the source of our bodily needs, wants, desires, and impulses, particularly our sexual and aggressive drives.</span>
Most of the night sky would be dark with only a few stars if the solar system were moved on the edge of galaxy.
<h3>What we can see at night if sun and earth moved to the edge?</h3>
If the Sun and Earth were moved on the edge of an elliptical galaxy, we can see most of dark and few stars in the sky at night because stars are present at large number at the center of galaxy and fewer at th edges.
So we can conclude that most of the night sky would be dark with only a few stars if the solar system were moved on the edge of galaxy.
Learn more about galaxy here: brainly.com/question/13956361
Answer: 1) 
; the effective nuclear charge is smallest at 
and the largest at 
Explanation:
: Atomic number or number of electrons or number of protons in Nitrogen is 7. As carries extra three electrons, the total no of electrons is 7+3=10.
: Atomic number or number of electrons or number of protons in Oxygen is 8. As carries extra two electrons, the total no of electrons is 8+2=10.
: Atomic number or number of electrons or number of protons in Fluorine is 9. carries extra one electron, the total no of electrons is 9+1=10.
Thus all the three species contain 10 electrons and thus are called as iso electronic species.
7 protons of nitrogen will not be able to hold 10 electrons tightly and thus the electrons will remain loosely bound, the effective nuclear charge will be least and the size will be largest. Whereas 10 protons of fluorine will effectively hold 10 electrons towards itself, the effective nuclear charge is highest and leads to smallest size.
