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13. A step up transformer has 250 turns on its primary and 500 turns on it secondary. When the primary is connected to a 200 V and the secondary is connected to a floodlight that draws 5A, what is the power output? Please show ALL of your work.

User TheFlash
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1 Answer

2 votes

Answer:

The output power is 2 kW

Step-by-step explanation:

It is given that,

Number of turns in primary coil,
N_p=250

Number of turns in secondary coil,
N_s=500

Voltage of primary coil,
V_p=200\ V

Current drawn from secondary coil,
I_s=5\ A

We need to find the power output. It is equal to the product of voltage and current. Firstly, we will find the voltage of secondary coil as :


(N_p)/(N_s)=(V_p)/(V_s)


(250)/(500)=(200)/(V_s)


V_s=400\ V

So, the power output is :


P_s=V_s* I_s


P_s=400\ V* 5\ A


P_s=2000\ watts

or


P_s=2\ kW

So, the output power is 2 kW. Hence, this is the required solution.

User Joey Baruch
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