Question

A transformer has 1300 turns in the primary coil and 140 turns in the secondary coil. Part A If the primary coil is connected to a 120 V outlet and draws 0.050 A , what are the voltage and current of the secondary? If the primary coil is connected to a 120 outlet and draws 0.050 , what are the voltage and current of the secondary? 1100 V , 5.4×10−3 A 1100 V , 0.46 A 13 V , 5.4×10−3 A 13 V , 0.46 A

Answer 1

correct answer is option d) 13 V and 0.46 A

Step-by-step explanation:

given,

primary coil,

Number of turns N₁ = 1300

Voltage of the primary coil V₁ = 120 V

Current in the primary coil, I₁ =0.05 A

secondary coil,

Number of turns coil N₂ = 140

voltage calculation,

`(V_1)/(V_2) = (N_1)/(N_2)`

`V_2=V_1* (N_2)/(N_1)`

`V_2=120* (140)/(1300)`

V₂ = 13 V

current calculation:

`(I_1)/(I_2) = (N_2)/(N_1)`

`I_2=I_1* (N_1)/(N_2)`

`I_2=0.05* (1300)/(140)`

I₂ = 0.46 A

hence, correct answer is option d) 13 V and 0.46 A