A transformer has input voltage and current of 12 V and 4 A
respectively, and an output
current of 0.8 A. If there are 1177 turns turns on the
secondary side of the transformer, how many
turns are on the primary side? 4 significant digits please.

Explanation:

It is given that,

Input voltage,

Input current,

Output current,

Number of turns in the secondary side of transformer,

We need to find the number of turns in the primary side of the transformer. The current to the number of turns in the input and output is given by :

Substituting all the above values

So,

So, the number of turns in primary side of the transformer is 5885.

given data:

determine the horse power (h.p) = ?

force applied to move the box(f) = 10 pounds,

box lifted from a distance         (d) = 3 feet

time taken to lift                         (t) = 10 sec,

the horse power is defined as amount of work required to move a load. the horse power is equal to 550 foot-pound per second

                  1 h.p   = 550 foot-pound/second

it can also be defined as the the load that need to be move a body for certain distance in a certain amount of time.

mathematically,

                      h.p = (force × distance)/ time

                            = (10 × 3)/ 10

                            = 30/10

                            = 3 foot -pound/sec

hence, the horse power is needed to move the box is 3 foot-pound/second

important note: 1 h.p = 550 foot-pound/second = 746 watts

b

explanation:

bc its just b