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Internal Resistance watch

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    I got B initially by considering the internal resistance and the galvanometer as resistors in parallel.

    This is wrong.

    How would you get the correct answer. ?
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    The internal resistance and galvanometer are in series. The same current passes through both.
    This gives answer A
 
 
 
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Updated: March 24, 2011
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The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

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