Answer:
Secondary voltage of transformer is 905.23 volt
Explanation:
It is given number of turns in primary of transformer 
Number of turns in secondary 
Input voltage equation of the transformer

Here 

For transformer we know that



Therefore secondary voltage of transformer is 905.23 volt
Im 99% sure
tan^-1 (6.2/22)= 15.7º
with 2 significant figures 16º
Answer:
Introducing a dielectric into a capacitor decreases the electric field, which decreases the voltage, which increases the capacitance.
Explanation:
A dielectric (or dielectric material) is an electrical insulator that can be polarized by an applied electric field. When a dielectric material is placed in an electric field, electric charges do not flow through the material as they do in an electrical conductor but only slightly shift from their average equilibrium positions causing dielectric polarization
Types of dielectric material
Ceramic, Mica paper glass