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If for an ideal step-up transformer curr...

If for an ideal step-up transformer current in primary is `I_P` and current in secondary is `I_S`, their respective voltage are `V_P` and `V_S`, then……

A

`I_S V_S = I_P V_P`

B

`I_S V_S gt I_P V_P`

C

`I_S V_P lt I_P V_P`

D

`I_S V_P lt I_P V_S`

Text Solution

Verified by Experts

The correct Answer is:
A
In an ideal transformer there is no loss of energy.
`therefore` Instantaneous output power
= instantaneous input power
`therefore I_SV_S=I_PV_P` [ `because` power P=VI]
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KUMAR PRAKASHAN-ALTERNATING CURRENTS -SECTION-D MCQs (DARPAN BASED ON TEXTBOOK)
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