Answer:
Coil 2 have 235 loops
Explanation:
Given
The number of loops in coil 1 is n
₁=
159
The emf induced in coil 1 is ε
₁
=
2.78
V
The emf induced in coil 2 is ε
₂
=
4.11
V
Let
n
₂ is the number of loops in coil 2.
Given, the emf in a single loop in two coils are same. That is,
ϕ
₁/n
₁=
ϕ
₂
n
₂⟹
2.78/159
=
4.11/
n
₂
n₂=![\frac{159 * 4.11}{2.78}](https://tex.z-dn.net/?f=%5Cfrac%7B159%20%2A%204.11%7D%7B2.78%7D)
n₂=235
Therefore, the coil 2 has n
₂=
235 loops.
Answer:
-0.64525g
Explanation:
t = Time taken for the car to stop
u = Initial velocity = 95 km/h
v = Final velocity = 0 km/h
s = Displacement
a = Acceleration
Equation of motion
![v^2-u^2=2as\\\Rightarrow a=\frac{v^2-u^2}{2s}\\\Rightarrow a=\frac{0^2-95^2}{2\times 0.055}\\\Rightarrow a=-82045.45\ km/h^2](https://tex.z-dn.net/?f=v%5E2-u%5E2%3D2as%5C%5C%5CRightarrow%20a%3D%5Cfrac%7Bv%5E2-u%5E2%7D%7B2s%7D%5C%5C%5CRightarrow%20a%3D%5Cfrac%7B0%5E2-95%5E2%7D%7B2%5Ctimes%200.055%7D%5C%5C%5CRightarrow%20a%3D-82045.45%5C%20km%2Fh%5E2)
Converting to m/s²
![a=82045.45=\frac{82045.45\times 1000}{3600\times 3600}=-6.33\ m/s^2](https://tex.z-dn.net/?f=a%3D82045.45%3D%5Cfrac%7B82045.45%5Ctimes%201000%7D%7B3600%5Ctimes%203600%7D%3D-6.33%5C%20m%2Fs%5E2)
g = Acceleration due to gravity = 9.81 m/s²
Dividing both the accelerations, we get
![\frac{a}{g}=\frac{-6.33}{9.81}=-0.64525\\\Rightarrow a=-0.64525g](https://tex.z-dn.net/?f=%5Cfrac%7Ba%7D%7Bg%7D%3D%5Cfrac%7B-6.33%7D%7B9.81%7D%3D-0.64525%5C%5C%5CRightarrow%20a%3D-0.64525g)
Hence, acceleration of the car is -0.64525g
Answer:
Tech B is correct and Tech A is incorrect.
Explanation:
Here Tech A is wrong because when diagnosing an overheating hydraulic system, it is not necessary to un plugg the oil cooler rather it should be plugged to for proper diagnosis.
Technician B says running the hydraulic system at a lower operating temperature will reduce the possibly of oil oxidation is correct statement because at temperature oil's physical as well as chemical property tend to change.
Hence, Tech B is correct and Tech A is incorrect.
Resultant is the correct answer!