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why we have to connect a very small resistance with galvanometer to convert galvanometer into ammeter ?

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Q. To convert a galvanometer into an ammeter we connect

Q. In order to convert a moving coil galvanometer into ammeter, the following will have to be connected

Q. To convert a galvanometer into an ammeter a small resistance

S

(called the shunt) is connected in parallel with a galvanometer. A galvanometer has resistance

G

and full scale deflection current

i

. To convert this galvanometer into an ammeter of range 10 i, a shunt

S = \frac{G}{9}

is connected in parallel with G.

Now we want to measure the potential difference with the help of this ammeter. The maximum value of potential difference which can be measured with the help of this is:

A 100 μ A

galvanometer with internal resistance

1000 Ω

is to be converted into an ammeter of 10 A. Find the shunt to be connected

Q. A galvanometer has a resistance of 500

Ω

and a current of 0.01 amp will cause full scale deflection. To convert this into an ammeter with full scale deflection for 5A, we have to connect approximately a resistance of

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