Consider the following statements regarding the network sho…

Physics Current Electricity Karnataka - CET Previous Year Question MCQ (Single Correct)

Consider the following statements regarding the network shown in the figure.

(I) The equivalent resistance of the network between points A and B is independent of value of G.

(II) The equivalent resistance of the network between points A and B is .

(III) The current through G is zero.

Which of the above statements is/are true?

(I) alone

(II) alone

(II) and (III)

(I), (II) and (III)

Text Solution

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The correct answer is:

As , hence the given network is a balanced Wheatstone bridge. Therefore, no current flows through G, so equivalent circuit diagram as shown in the figure.

Hence, the equivalent resistance of the network between points A and B is

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