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Int he circuit shown below, the ammeter reading is zero. Then the value of the resistance $R$ is :

(a) $50 \; \Omega$

(b) $100 \; \Omega$

(c) $200 \; \Omega$

(d) $400 \; \Omega$

1 Answer

(b) $100 \; \Omega$
answered Nov 7, 2013 by pady_1
 

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