Answer:
a) No-Load Current will increase
b) The magnetising reactance will increase
c) The secondary voltage will decrease
Explanation:
a) when an air ap is made in the transformer core then more current is required for the magnetisation of core. Hence, no-load current will incraese.
b) with the air gap the magnetomotive force increases. As a result, the angle between the voltage and current increases. Consequently, power factor decreases. Power factor always decreases when the reactive behaviour of circuit incraeses. Hence, Magnetisation reactance will increase.
c) Secondary voltage decreases due to air gap. Therefore, it is said that with the air gap the efficiency of the transformer decreases.
Answer:
Below
Explanation:
You can use this equation to find the distance :
distance = velocity x time
distance = (26.7)(3.06)
= 81.702 m
Rounding to 3 sig figs
= 81.7 m
Hope this helps
Explanation:
The gravitational force between two masses having masses. Let m is the mass of smaller object and M is the mass of larger object. The gravitational force between these two spheres is given by :
r is the separation between two spheres
G is universal gravitational constant,
The value of G remains same always no matter how objects are placed.