Answer:
Explanation:
Area of crossection, A = 7.80 cm²
Initial magnetic field, B = 0.5 T
Final magnetic field, B' = 3.3 T
Time, t = 1 s
resistance of the coil, R = 1.2 ohm
The induced emf is given by
where, Ф is the rate of change of magnetic flux.
e = 7.80 x 10^-4 x (3.3 - 0.5) / 1
e = 2.184 mV
i = e/R
i = 2.184/1.2
i = 1.82 mA
Answer:
im not 100% sure but i think d it makes the most sense to me
Explanation:
Frequency:
Frequency is defined as number of events occurring per second.
- Mathematically written as
- The dimensions
are
![[f]=\frac{1}{[T]}](https://tex.z-dn.net/?f=%5Bf%5D%3D%5Cfrac%7B1%7D%7B%5BT%5D%7D)
as
![[T]=[S]](https://tex.z-dn.net/?f=%5BT%5D%3D%5BS%5D)
so,
![[f]=[S^{-1}]](https://tex.z-dn.net/?f=%5Bf%5D%3D%5BS%5E%7B-1%7D%5D)
Answer:
This is not a question, but a statement. The concept that the work done is equal to the input work on a simple machine is called ideal machine. An ideal machine has 100% efficiency which means that there is no loss. All the amount of input work is equal to the useful output of the machine.
Explanation:
It's the instantaneous speed. Average speed would take all the different speeds from the whole ride in order to fine the median or middle speed.
