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  4. A step up transformer has turns ratio 10: 1. A source of emf 2 volts is fed to the primary. Secondary voltage developed is

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Q. A step up transformer has turns ratio $10 : 1$. A source of emf 2 volts is fed to the primary. Secondary voltage developed is

COMEDKCOMEDK 2005Alternating Current

Solution:

Given,$N_S : N_P = 10 : 1 , V_P = 2V$
$ \therefore \, \, \, V_S = \frac{N_S}{N_P} V_P = \frac{10}{1} \times 2 = 20 V $