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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > In the circuit shown in fig a current I = 150 mA enters through A and leaves through B. Reading of the identical voltmeters V1 and V2 are 20 V and 30 V respectively. Find the magnitude of resistance R.

In the circuit shown in fig a current I = 150 mA enters through A and leaves through B. Reading of the identical voltmeters V1 and V2 are 20 V and 30 V respectively. Find the magnitude of resistance R.

In the circuit shown in figure AB is a uniform wire of length L = 5 m. It has a resistance of 2Ω/m. When AC=2.0 m In the circuit shown in the figure: it was found that the galvanometer shows zero reading when switch s is placed in either of the two positions 1 or 2. find the emf E1.