Question 18 (1 points) A step-up transformer connected to a 110-V line is used to supply a hydrogen-gas discharge tube with 5.0 kV (rms). The tube dissipates 75 W of power. What is the ratio of the number of turns in the secondary winding to the number of turns in the primary winding?

Respuesta :

Answer:

Nā‚‚/N₁ = 45

Explanation:

The relation of the number of turns with the voltage is given by the EMF equation of transformer: Ā 

[tex] \frac{V_{2}}{V_{1}} = \frac{N_{2}}{N_{1}} [/tex] (1)

where V₁: voltage of the primary winding, Vā‚‚: voltage of the secondary winding, N₁: number of turns in the primary winding, and Nā‚‚: number of turns in the secondary winding

Assuming that the primary winding is connected to the input voltageĀ supply, and using equation (1), we can calculate the ratio of Nā‚‚ to N₁:

[tex] \frac{N_{2}}{N_{1}} = \frac{V_{2}}{V_{1}} = \frac{5.0 \cdot 10^{3}V}{110V} = 45 [/tex] Ā  Ā  Ā Ā 

So, the ratio Nā‚‚/N₁ is 45.

Have a nice day!