The primary coil of a transformer has 225 turns and secondary coil has 1800 turns. The potential difference in the primary coil is 250 V and the power input is 3 600 W.

PLEASE SHOW ALL STEPS!

a) Is this a step-up or step-down transformer?
b) What is the current in the primary coil?
c) What is the power in the secondary coil?
d) What is the potential difference in the secondary coil? e) What is the current in the secondary coil?

Explanation:

a )  Since number of turns in secondary is more than that in primary so it is step up transformer.

b ) power in input = 3600W

Current x potential of primary = power

current = power / potential of primary

= 3600 / 250

= 14.4 A .

c ) power of secondary = power of primary = 250 W.

d ) potential diff of secondary = (1800 / 225) x 250

= 2000V .

e ) current in secondary

= power in secondary / potential in secondary

= 3600 / 2000

= 1.8 A.

we have been given a quadratic function and we need to restrict the domain such that it becomes a one to one function.

we know that vertex of this quadratic function occurs at (5,2).

further, we know that range of this function is .

if we restrict the domain of this function to either or , it will become one to one function.

let us know find its inverse.

upon interchanging x and y, we get:

let us now solve this function for y.

hence, the inverse function would be if we restrict the domain of original function to and the inverse function would be if we restrict the domain to .