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

Question

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

Tardigrade Admin · Accepted Answer

For an ideal step-down transformer, power is constant for both the coils. i.e. Input power = Output power ∴ VpIp=VsIs or (Vp/Vs)=(Is/Ip)

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

current in the coils

voltage across the coils

resistance of coils

power in the coils

For an ideal step-down transformer, power is constant for both the coils.
i.e. Input power = Output power
$∴ V_{p} I_{p} = V_{s} I_{s}$ or $\frac{V _{p}}{V _{s}} = \frac{I _{s}}{I _{p}}$

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

current in the coils

voltage across the coils

resistance of coils

power in the coils

For an ideal step-down transformer, power is constant for both the coils. i.e. Input power = Output power ∴Vp​Ip​=Vs​Is​ or Vs​Vp​​=Ip​Is​​

For an ideal step-down transformer, power is constant for both the coils.
i.e. Input power = Output power
$∴ V_{p} I_{p} = V_{s} I_{s}$ or $\frac{V _{p}}{V _{s}} = \frac{I _{s}}{I _{p}}$