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AC Generator and Transformer for GUJCET: 17 solved questions

Real GUJCET paper questions on ac generator and transformer, part of alternating current. Each opens with the options, the correct answer and a step-by-step solution. Papers run from 2014 to 2026. No sign-in needed to read them.

What this topic asks

• Transformers — 16 questions
• AC generator, motors and devices — 1 question

All 17 questions with solutions

• The output power in a step-up transformer used in practice is . GUJCET 2014
• For a step-down transformer, which of the following is correct? GUJCET 2016
• The number of turns in the coil of an A.C. generator is 100 and its cross-sectional area is 2.5 m². The coil… GUJCET 2017
• What is correct for a real transformer? GUJCET 2020
• For an ideal transformer, if Nₛ > Nₚ then . GUJCET 2022
• If the primary coil of a transformer has 100 turns and the secondary has 200 turns. Then for a input of 220 V… GUJCET 2024
• In an ideal step up transformer, the number of turns in primary coil and secondary coil are 100 and 200 respe… GUJCET 2026
• Which device is used to increase or decrease A.C. voltage? GSEB Board July 2016
• The output power in a step-up transformer is _. GSEB Board July 2017
• A power transmission line feeds input power at 3300 V to a step-down transformer with its primary windings ha… GSEB Board March 2020
• In practice, for a step-up transformer the current in the primary is I_P and the current in the secondary is… GSEB Board March 2020 (old course)
• For an ideal step-down transformer, GSEB Board July 2021
• If Pₒ is the output power and Pᵢ is the input power of a real step-up transformer, then GSEB Board March 2022
• To serve which one of the following purposes is a laminated core used in the construction of a transformer? GSEB Board July 2022
• A power transmission line feeds input power at 2300 V to a step-down transformer with its primary winding hav… GSEB Board March 2023
• A power transmission line feeds input power at 2300 V to a step-down transformer with its primary windings ha… GSEB Board July 2023
• For a step-down transformer the value of the transformation ratio is . RS Academy GUJCET booklet