In a meter bridge, the left and right gaps are closed by resistances $$2$$ ohm and $$3$$ ohm respectively. The value of shunt to be connected to $$3$$ ohm resistor to shift the balancing point by $$22.5$$ cm is

Question

In a meter  bridge, the left and right gaps are closed by resistances $$2$$      ohm and $$3$$      ohm  respectively.  The value of shunt to be  connected to $$3$$      ohm resistor to  shift the balancing point by $$22.5$$ cm     is

Infinity Learn · Accepted Answer

Resistance $$R=2$$ Ω       Resistance $$S=3$$ Ω     Balancing length l $$1=22.5$$ cm     Balancing condition for meter bridge $$RS=l100$$−l     $$23=l100$$−l     ⇒$$l=40cm$$     shunt to be  connected to $$3$$ ohm $$resistorRS=l$$ $$1100$$−l $$1$$     $$23X3+X=62.537.5$$     $$18+6X=15X$$     ⇒$$9X=18$$        ∴  $$X=2$$ Ω

In a meter bridge, the left and right gaps are closed by resistances $2$ ohm and $3$ ohm respectively. The value of shunt to be connected to $3$ ohm resistor to shift the balancing point by $22.5 c m$ is

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In a meter bridge, the left and right gaps are closed by resistances 2 ohm and 3 ohm respectively. The value of shunt to be connected to 3 ohm resistor to shift the balancing point by 22.5 cm is

Remember concepts with our Masterclasses.

Ready to Test Your Skills?

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In a meter bridge, the left and right gaps are closed by resistances $2$ ohm and $3$ ohm respectively. The value of shunt to be connected to $3$ ohm resistor to shift the balancing point by $22.5 c m$ is