मराठी

The Secondary Windings of a Transformer in Which the Voltage is Stepped Down Are Usually Made of Thicker Wire than the Primary. Explain Why. - Physics

Advertisements
Advertisements

प्रश्न

The secondary windings of a transformer in which the voltage is stepped down are usually made of thicker wire than the primary. Explain why.

Advertisements

उत्तर

The secondary windings of a transformer in which the voltage is stepped down are usually made up of thicker than the primary because more current flows in the secondary coil. The use of thicker wire reduces its resistance and therefore the loss of energy as heat in the coil.

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?

संबंधित प्रश्‍न

What type of current is transmitted from the power station?


The following diagram in Fig.10.42 shows a coil of several turns of copper wire connected to a sensitive centre zero galvanometer G near a magnet NS. The coil is free to move in the direction shown in the diagram.

(i) Describe the observation if the coil is rapidly moved.
(ii) How would the observation be altered if (a) the coil has twice as many turns (b the coil was made to move three times as fast?


Describe briefly and two energy losses, giving the reasons for their occurrence in actual transformers ?


In a series resonant RLC circuit, the voltage across 100 Ω resistor is 40 V. The resonant frequency ω is 250 rad/s. If the value of C is 4 µF, then the voltage across L is


Explain the working of the transformer.


Give the advantage of AC in long distance power transmission with an illustration.


A transformer works on the principle of ______.


Electrical energy is transmitted over large distances at high alternating voltages. Which of the following statements is (are) correct?

  1. For a given power level, there is a lower current.
  2. Lower current implies less power loss.
  3. Transmission lines can be made thinner.
  4. It is easy to reduce the voltage at the receiving end using step-down transformers.

Magnetic flux Φ in weber in a closed circuit of resistance 10Ω varies with time Φ (sec) as Φ = 6t2 - 5t + 1. The magnitude of induced current at t = 0.25s is ______.


An ideal transformer converts 220 V a.c. to 3.3 kV a.c. to transmit a power of 4.4 kW. If primary coil has 600 turns, then alternating current in secondary coil is ______.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×