Electric Circuits
Two identical resistors are first connected in parallel then in series. The ratio of resultant resistance of the first combination to the second will be

 2.
 0.5.
 0.25.
 4.

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Electric Circuits
Which of the following characteristics is/are attributed to an ideal independent voltage source?

 Independent of the direction of flow of current.
 both ‘b’ and ‘d’.
 Independent of the magnitude of voltage supplied.
 Independent of magnitude of current supplied..

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