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NCERT FINGERTIPS-ALTERNATING CURRENT -Transformers
- A transformer works on the principle of
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- Transformer is used to
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- For an ideal step-down transformer, the quantity which is constant for...
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- Quantity that remains unchanged in a transformer is
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- The core of a transformer is laminated to reduce
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- The loss of energy in the form of heat in the iron core of a transform...
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- In a transformer the transformation ratio is 0.3. If 220 V ac is fed t...
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- A transformer is used to light a 140 W, 24 V lamp from 240 V AC mains....
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- in a step-up transformer, the turn ratio is 1:2 leclanche cell (e.m.f....
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- A transformer has 100 turns in the primary coil and carries 8A current...
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- A 60 W load is connected to the secondary of a transformer whose prima...
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- A step down transformer converts transmission line voltage from 11000 ...
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- In the question number 96, the number of turns in the secondary is
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- A power transmission line feeds input power at 2400 V to a step down t...
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- Calculate current drawn by primary coil of a transformer, Which steps ...
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- A small town with a demand of 800 kW of electric power at 220 V is sit...
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