Which of the following describes the change in current from the primary circuit to the secondary...

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Physics

Which of the following describes the change in current from theprimary circuit to the secondary circuit of a step-up transformer?a. The current in the secondary circuit is less than the current inthe primary circuit. b. The current in the secondary circuit isequal to the current in the primary circuit. c. The current in thesecondary circuit is greater than the current in the primarycircuit. d. none of the above
A step-up transformer is used to change the voltage produced bya generator from 30 kA to 300 kA. The amount of power producedafter the voltage increase is 600 MW and the energy is then sentthrough a transmission line with a resistance of 0.2 W. How muchpower is lost in transmission? a. 1 MW b. 0.8 MW c. 0.4 MW d. 0.6MW
What could happen during power transmission if the voltage istoo high? a. There will not be enough current to travel through thewires. b. The magnetic field that is induced could interfere withsatellite communications. c. It would be impossible to step down toa level for home usage. d. The energy could discharge through theair and to the ground.
thank you so much.

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4.5 Ratings (758 Votes)

1 Option aThe current in the secondary circuit is less than the current in the primary circuit is correct here because In case of change in current from the primary circuit to the secondary circuit of a stepup transformer we have the relation as Primary power SECONDARY power So that here V1V2 I2I1 Means See Answer

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