Question

A coil has a resistance of 5.2 ohms; the resistance has to be reduced to 50 connecting a shunt across the coil. If this shunt is made of manganin wire of diameter 0.025 cm, the length of wire required . Specific resistance for manganin is 47x 108Am.​

Answer 1

Answer:

Here, V

G

=V

S

so I

G

G=I

S

S

or (I−I

S

)G=I

S

S

or I

S

=

G+S

IG

=

8+2

1×8

=0.8A