• Accueil
• Math
• Atransformer changes 200 v across the primary 12 v...

# Atransformer changes 200 v across the primary 12 v across the secondary. if the secondary coil has 10 turns how many turns does the primary coil have?

• Réponse publiée par: 09389706948

the answer is B 80turns

Explanation:

Hello!

Remember that a transformer is an electrical device that allows you to change the voltage and current levels keeping the electric power constant, in this order of ideas the equation that governs this device is as follows where

Vp= primary voltage=120V

Vs= secondary voltage=1200V

Ns=turns of secondary=800

Np=turns of primary

now we solve for Np  the answer is B 80turns

• Réponse publiée par: nicole8678

777 777

step-by-step explanation:

trying to help. i think my answer is correct

• Réponse publiée par: hajuyanadoy

yes.

step-by-step explanation:

q: do you think you can apply the same concept in simplifying a rational algebraic expression?

yes, through applying the concept of factoring and greatest common factor or gcf can be used in order to simplify a rational algebraic expression.

for example: the value of the numerator is 10x + 25y. 10 and 25 has a factor of 5, hence, it can be written in such a way that it is factored by 5.

10x + 25y = 5 (2x + 5y)

when we multiple 2x + 5y by 5, we will arrive to the same given.

after factoring the numerator, we will look in the denominator to see if the common factor in the numerator be possible to divide or cancel. in this case: 5 can be cancelled from both numerator and denominator as long as there is no subtraction or addition involved with 5. hence, we will arrive to the following solution: = 2x + 5y

code: 8.3.1.2.1.