EASY
Earn 100

What does turn ratio of a transformer indicates?

Important Questions on Consequences

EASY
Physics>Change>Consequences>Transformer

Draw a labelled diagram to show the various components of a step-down transformer.

MEDIUM
Physics>Change>Consequences>Transformer
Define power transmission.
MEDIUM
Physics>Change>Consequences>Transformer
A step-up transformer has 2000 turns on one coil and 5000 on the other. Calculate the ratio NPNS for this transformer.
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Physics>Change>Consequences>Transformer
Write a short note on transformers.
EASY
Physics>Change>Consequences>Transformer
Define transmission loss.
HARD
Physics>Change>Consequences>Transformer

In the circuit diagram, a transformer is being used to change the mains voltage to a lower value so that it will light a 12 V amp.

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The primary coil has 1000 turns, Calculate how many turns the secondary coil has.

HARD
Physics>Change>Consequences>Transformer
Describe the working of a simple step-up transformer.
EASY
Physics>Change>Consequences>Transformer
Transformer works on
HARD
Physics>Change>Consequences>Transformer
Explain power transmission process.
EASY
Physics>Change>Consequences>Transformer
In an experiment, a student wants to use a transformer to convert a primary voltage of 3 V a .c. to a secondary voltage of 10 V a.c. They have coils with  100, 150, 200, 500, 1,000, 1,500 and 2,000  turns available to make into the transformer. Which coils should they use?
EASY
Physics>Change>Consequences>Transformer
Define power transmission.
MEDIUM
Physics>Change>Consequences>Transformer
Why a step-up type of transformer is used in power stations?
EASY
Physics>Change>Consequences>Transformer
In an experiment, a student wants to use a transformer to convert a primary voltage of 3 V a .c. to a secondary voltage of 10 V a.c. They have coils with  100, 150, 200, 500, 1,000, 1,500 and 2,000  turns available to make into the transformer. Why would this not work with a d.c voltage? 
EASY
Physics>Change>Consequences>Transformer
State the main difference between a step-up and step-down transformer.
MEDIUM
Physics>Change>Consequences>Transformer
Electrical power is often transmitted over long distances in high-voltage power lines (cables). Transformers are used to increase the voltage provided by the power station and to reduce the voltage for the final user. A transformer has 10 turns of wire on its primary coil and 200 turns on its secondary coil. If the p.d. across the primary coil is 3.0 V a.c., what will the e.m.f. across the secondary be?
HARD
Physics>Change>Consequences>Transformer
Explain the construction of a voltage transformer.
EASY
Physics>Change>Consequences>Transformer
Cotyledons are also called-
HARD
Physics>Change>Consequences>Transformer
Explain two types of transformer.
MEDIUM
Physics>Change>Consequences>Transformer
In an experiment, a student wants to use a transformer to convert a primary voltage of 3 V a .c. to a secondary voltage of 10 V a.c. They have coils with  100, 150, 200, 500, 1,000, 1,500 and 2,000  turns available to make into the transformer.  What is the largest and smallest voltage they could generate
with these coils? 
EASY
Physics>Change>Consequences>Transformer
Why oil is used in transformer?