Electrical Engineering - Transformers - Discussion
Discussion Forum : Transformers - General Questions (Q.No. 9)
9.
If 25 W of power are applied to the primary of an ideal transformer with a turns ratio of 10, the power delivered to the secondary load is
Discussion:
58 comments Page 2 of 6.
Anu said:
1 decade ago
For an ideal transfer power is always constant.
Relish said:
1 decade ago
Efficiency=output power/input power
output power=Vout*Iout
input power=Vin*Iin
eff=(Vout*Iout)/(Iin*Vin)
=(Vout/Vin)*(Iout/Iin)
=(N2/N1)*(N1/N2)
=1
Therefor, power output = power input.
output power=Vout*Iout
input power=Vin*Iin
eff=(Vout*Iout)/(Iin*Vin)
=(Vout/Vin)*(Iout/Iin)
=(N2/N1)*(N1/N2)
=1
Therefor, power output = power input.
Aadit Bankim Mehta said:
1 decade ago
Transformer is a static device which step up od step down the voltage level keeping power constant.
So answer is 25W itself.
So answer is 25W itself.
Ramana IIIT said:
1 decade ago
In Ideal transformer the powerloss will be zero.
Givendata:-
N2/N1=10
P1=25
V2/V1=N2/N1---->10V1=V2
N2/N1=I1/I2---->I1=10I2
Power=VI
10V1I1=10V2I2
Then V1I1=V2I2
Givendata:-
N2/N1=10
P1=25
V2/V1=N2/N1---->10V1=V2
N2/N1=I1/I2---->I1=10I2
Power=VI
10V1I1=10V2I2
Then V1I1=V2I2
Manish said:
1 decade ago
Actually in ideal transformer their are no losses. So whatever would be the input that will be output. Practically ideal transformer dosn't exist. That's why when 25w which given to it. It gives same output that is 25w.
Sherin said:
1 decade ago
In ideal transformer input power =output power .so 25W is the answer.
Arun said:
1 decade ago
In the ideal transformer power is equal in both primary and secondary.
Atul devraj said:
1 decade ago
Because transformer is ideal so power is equal in both primary and secondary.
Sunil M. Mude said:
1 decade ago
Basically for an ideal transformer in ieal condition losses are zero & its efficiency is 100%, also whatever primary side input that will be secondary output...
so the answer will be 25W....
so the answer will be 25W....
Rajendra said:
1 decade ago
In transformer constant power so their is no change in input and output power.
i.e. Answer is 25w.
i.e. Answer is 25w.
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