Consider the relative galvanometer deflection in the transformer type set up(Par

Question

Consider the relative galvanometer deflection in the transformer type set up(Part 3). Fill in the blanks with relative galvanometer deflections (left, zero, right) under the conditions specified. As tap key is being closed _________ While tap key remains closed ___________ As tap key is being opened ________ While tap key remains opened _________ Will a transformer work with direct current? __________ Will a transformer work with alternating current? _________ Briefly explain your answers below.

Explanation / Answer

Left

Zero

Right

Zero

Transformer works for alternating current

A transformer transfers power from one part of circuit to other by the principle of mutual induction. so when ac flows through the coil flux linked to secondary coil changes and emf is induced.

If a dc source is placed there is change in current and magnetic flux only when the tap key is being opened or closed.

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