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What is a DC transformer used for?
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Select insulating materials for following parts: (i) Insulation between heating element and base plate of electric iron. (ii) Insulation used over copper or aluminium conductor used for making coils. (iii) Transformer bushings. (iv) Insulation between transmission line and pole.

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What is a DC-AC inverter used for in renewable energy systems?

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Why back emf used for a dc motor? highlight its significance.

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State at least one function and the material used for the following parts of a DC motor.

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Which transformer is used in a half-wave rectifier?

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What will happen if DC supply is given on the primary of a transformer?

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Is a transformer AC or DC machine?
Answer : A transformer is an **AC (Alternating Current) machine**. This is because transformers work on the principle of **electromagnetic induction**, which only happens with alternating current. ... coil after the initial moment of current flow. Therefore, transformers only function properly with AC....

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Why transformer is not used in half wave rectifier?

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Which transformer is used in half wave rectifier?
Answer : In a half-wave rectifier, a **single-phase transformer** is typically used. The transformer is used to step up or step down the AC voltage to the desired level before it is rectified. ... of the AC waveform is used, and the transformer ensures the correct voltage is available for rectification....

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