A couple questions 1 A transformer has 100 loops in its seco

A couple questions:

1: A transformer has 100 loops in its secondary winding and is designed to accept an input AC potential difference of 830 V and produce an output of 470 V. How many loops does the transformer’s primary winding contain?

2. What is the binding energy for a nucleus of helium-4, also known as an alpha particle? A neutron has a mass of 1.00866 u, a proton has a mass of 1.00728 u, and an alpha particle has a mass of 4.00153 u, where u = 1.66054×1027 kg. Express the energy in joules to three significant figures.

Solution

1)

here ,

loops in primary , Np

loops in secondary , Ns = 100

primary voltage , Vp = 830 V

secondary voltage , Vs = 470 V

Now. for a transformer ,

Ns/Np = Vs/Vp

100/Np = 470/830

solving for Np

Np = 176.6

the number of loops in primary is 177