Question

A galvanometer of resistance 100ohm gives full scale deflection for 10mA current. what should be the value of shunt so That it can measure a current of 100mA​

Answer 1

Answer:

Explanation:

Plzzz guys tell me will this help uhh

Answer 2

Answer:

The value of shunt is 11.11Ω

Explanation:

Given that,

The resistance of the galvanometer is 100ohm

$R_{g</strong><strong>a</strong><strong>l</strong><strong>}=100 Ω$

Also given the full scale deflection current is 10mA

$=>i _{g</strong><strong>a</strong><strong>} =10mA$

Also given the current to be measured in the galvanometer is 100mA

$= > i = 100mA$

Let the shunt resistance is R_{s}.For galvanometer we have an relation between shunt resistance and current as follows

$(i-i_{ga})R_{s}=i_{g}R_{gal}$

Substituting the known values in above equation,we get

$\\ (100mA-10mA)</strong><strong>R</strong><strong>_</strong><strong>{</strong><strong>s</strong><strong>}</strong><strong>=10mA \times 100Ω \\ = > </strong><strong>R</strong><strong>_</strong><strong>{</strong><strong>s</strong><strong>}</strong><strong>= \frac{10 \times 100}{90} = 11.11Ω$

Therefore,the value of shunt is found to be 11.11Ω

#SPJ6