Explanation:
the pressure is given by P=hpg
where h is height,p is density, g is 10m/s²
thus P= 0.05m•13.6x10³•10
P=6.8x10³ Hgmm
Answer:
False
Explanation:
We know that if path difference is even multiple of wavelength then bright fringes are formed and if path difference is odd multiple of wavelength then dark fringes are formed .
For bright fringes
Path difference Δx = m λ
m = 0 , 2 , 4 , 6.......
If m = 2 then the path difference will be
Δx = 2 λ
therefore the above statement if false.
False
This one is correct
Jamie is correct, because the mechanical energy is converting to electrical energy.
Answer:
The current in the motor in this case is 13.2 A
Explanation:
Given:
Resistance 
5 Ω
Emf 
V
Induced emf 
V
When motor run at half speed due to load increased then induced emf is also reduced to half of its value
So new induced emf in our case is given by,
V
Where 
A
Therefore, the current in the motor in this case is 13.2 A
