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प्रश्न
Draw a simple labeled diagram of a step-down transformer.
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उत्तर
Step down trasformer
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संबंधित प्रश्न
State Fleming’s right-hand rule.
When an electric current is passed through any wire, a magnetic field is produced around it. Then why an electric iron connecting cable does not attract nearby iron objects when electric current switched on through it?
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A conducting rod is moved with a constant velocity v in a magnetic field. A potential difference appears across the two ends _____________ .
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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List some of the practical applications of an electromagnet.
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A sheet is placed on horizontal surface in front of a strong magnetic pole. A force is needed to:
- hold the sheet there if it is magnetic.
- hold the sheet there if it is non-magnetic.
- move the sheet away from the pole with uniform velocity if it is conducting.
- move the sheet away from the pole with uniform velocity if it is both, non-conducting and nonpolar.
Choose the correct statement(s) from the options given below:
