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प्रश्न
Name the transformer used in the power transmitting station of a power plant.
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उत्तर
A step-up transformer is used in the power transmitting station of a power plant.
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संबंधित प्रश्न
The primary coil of an ideal step-up transformer has 100 turns and the transformation ratio is also 100. The input voltage and power are 220 V and 1100 W, respectively. Calculate the
(a) number of turns in secondary
(b) current in the primary
(c) a voltage across secondary
(d) current in secondary
(e) power in secondary
Which coil of a step up transformer is made thicker and why?
Why is the core of a transformer made of soft iron?
The 300 turn primary of a transformer has resistance 0.82 Ω and the resistance of its secondary of 1200 turns is 6.2 Ω. Find the voltage across the primary if the power output from the secondary at 1600V is 32 kW. Calculate the power losses in both coils when the transformer efficiency is 80%
What type of transformer is used in a mobile phone charger?
A step down transformer connected to an ac mains supply of 220 V is made to operate at 11 V, 44 W lamp. Ignoring power losses in the transformer, what is the current in the primary circuit?
What does the laminated soft iron core provide for the flux?
What is the induced EMF in the secondary coil?
What drives current through the connected load and delivers AC output?
