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प्रश्न
Complete the following diagram of a transformer and name the parts labeled A and B. Name the part you have drawn to complete the diagram . What is the material of this part? In this transformer a step-up or step-down? Why?
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उत्तर
The part drawn to complete the diagram is the core.
Material of core is soft-iron .
It is a step down transformer because the number of turns in the primary is more than the number of turns in the secondary.
संबंधित प्रश्न
State whether the following statement are true or false:
A generator works on the principle of electromagnetic induction.
A conducting rod is moved with a constant velocity v in a magnetic field. A potential difference appears across the two ends _____________ .
A metal plate can be heated by ______.
Ansari Sir was demonstrating an experiment in his class with the setup as shown in the figure below.
A magnet is attached to a spring. The magnet can go in and out of the stationary coil. He lifted the Magnet and released it to make it oscillate through the coil.
Based on your understanding of the phenomenon, answer the following question.
What is the principle which Ansari Sir is trying to demonstrate?
Which of the following phenomena makes use of electromagnetic induction?
Around 1830, who showed that an electric current can be induced in a closed coil exposed to a changing magnetic field?
What change can produce a current in a stationary conductor?
What did Faraday show in 1831?
Which group consists entirely of technologies that work on electromagnetic induction?
