The transformer ratio in the step-up transformer is?

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The transformer ratio in a step-up transformer is greater than 1.

In a step-up transformer, the number of turns in the secondary winding is greater than the number of turns in the primary winding. This means that the voltage in the secondary winding is higher than the voltage in the primary winding.

The ratio of the number of turns in the secondary winding to the number of turns in the primary winding determines the voltage transformation ratio of the transformer.

For example, if a transformer has a turns ratio of 1:10, this means that there are 10 turns in the secondary winding for every 1 turn in the primary winding, resulting in a voltage transformation ratio of 10:1. As a result, a low voltage applied to the primary winding will be transformed into a higher voltage on the secondary winding.

Step up transformer

We know that the transformer ratio is given by, k = N_S/N_P= E_S/E_P

For a step-up transformer, E_S>E_P

So, k > 1

The transformer ratio in the step-up transformer is greater than 1.

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The transformer ratio in the step-up transformer is?

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2.
Write any two features of nuclear forces.

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Suppose a pure Si crystal has \( 5 \times 10^{28} \) atoms per \( \text{m}^3 \). It is doped with \( 5 \times 10^{22} \) atoms per \( \text{m}^3 \) of Arsenic. Calculate majority and minority carrier concentration in the doped silicon. (Given: \( n_i = 1.5 \times 10^{16} \, \text{m}^{-3} \))

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5.
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Draw a circuit diagram of a full-wave rectifier using p-n junction diodes. Explain its working and show the input-output waveforms.

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The transformer ratio in the step-up transformer is?

CBSE CLASS XII Related Questions

2. Write any two features of nuclear forces.

3.Suppose a pure Si crystal has \( 5 \times 10^{28} \) atoms per \( \text{m}^3 \). It is doped with \( 5 \times 10^{22} \) atoms per \( \text{m}^3 \) of Arsenic. Calculate majority and minority carrier concentration in the doped silicon. (Given: \( n_i = 1.5 \times 10^{16} \, \text{m}^{-3} \))

4.The figure shows three point charges kept at the vertices of triangle ABC. The net electric field, due to this system of charges, at the midpoint M of base BC will be:

5.Photoemission of electrons occurs from a metal (\( \phi_0 = 1.96 \, \text{eV} \)) when light of frequency \( 6.4 \times 10^{14} \, \text{Hz} \) is incident on it. Calculate: Energy of a photon in the incident light, The maximum kinetic energy of the emitted electrons, and The stopping potential.

6.Draw a circuit diagram of a full-wave rectifier using p-n junction diodes. Explain its working and show the input-output waveforms.

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Comments

SUBSCRIBE TO OUR NEWS LETTER

2.
Write any two features of nuclear forces.

3.
Suppose a pure Si crystal has \( 5 \times 10^{28} \) atoms per \( \text{m}^3 \). It is doped with \( 5 \times 10^{22} \) atoms per \( \text{m}^3 \) of Arsenic. Calculate majority and minority carrier concentration in the doped silicon. (Given: \( n_i = 1.5 \times 10^{16} \, \text{m}^{-3} \))

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