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For an ideal step-down transformer, the ...

For an ideal step-down transformer, the quantity which is constant for both the coils is

A

current in the coils

B

voltage across the coils

C

resistance of coils

D

power in the coils

Text Solution

Verified by Experts

The correct Answer is:
D
For an ideal step-down transformer, power is constant for both the coils.
i.e., Input power = Output power
`therefore V_(p)I_(p) = V_(s)I_(s)` or `(V_(p))/(V_(s))=(I_(s))/(I_(p))`
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