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First a set of n equal resistors of R ea...

First a set of n equal resistors of R each are connected in series to a battery of emf E and internal resistance R. A current I is observed to flow. Then, the n resistors are connected in parallel to the same battery. It is observed that the current is increased 10 times. What is 'n'?

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Knowledge Check

  • A set of 'n' equal resistor, of value of 'R' each are connected in series to a battery of emf 'E' and internal resistance 'R' . The current drawn is I . Now, the 'n' resistors are connected in parallel to the same battery. Then the current drawn from battery becomes 10.1. The value of 'n' is

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    B
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    D
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  • A battery of emf E and internal resistance r is connected to a variable resistor R as shown in figure. Which one of the following is true ?

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    B
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    C
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    D
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