The current in the secondary coil of a transformer is 1A and that in t

1.	The current in the secondary coil of a transformer is 1A and that in the primary is 0.5 A.a. What type of transformer is this? b. If 200 V is available in the secondary coil of this transformer, what is the voltage in the primary?c. Explain the working principle of a transformer.
Answer» a. Step down Transformer. b. \(\cfrac{I_p}{I_s}\) = \(\cfrac{V_s}{V_p}\) V_p= \(\cfrac{V_s\times I_s}{I_p}\) = \(\cfrac{200 \times 1}{0.5}\) = 400 V c. Mutual Induction: Keep two sets of coils side by side. When the direction of current flow or its intensity is changed in one, the magnetic flux around it also changes. An emf and current is induced in the secondary coil. This phenomenon is called mutual induction.

The current in the secondary coil of a transformer is 1A and that in the primary is 0.5 A.a. What type of transformer is this? b. If 200 V is available in the secondary coil of this transformer, what is the voltage in the primary?c. Explain the working principle of a transformer.

Answer»

a. Step down Transformer.

b. \(\cfrac{I_p}{I_s}\) = \(\cfrac{V_s}{V_p}\)

V_p= \(\cfrac{V_s\times I_s}{I_p}\) = \(\cfrac{200 \times 1}{0.5}\)

= 400 V

c. Mutual Induction:

Keep two sets of coils side by side. When the direction of current flow or its intensity is changed in one, the magnetic flux around it also changes. An emf and current is induced in the secondary coil. This phenomenon is called mutual induction.

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The current in the secondary coil of a transformer is 1A and that in the primary is 0.5 A.a. What type of transformer is this? b. If 200 V is available in the secondary coil of this transformer, what is the voltage in the primary?c. Explain the working principle of a transformer.

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