A galvanometer coil has a resistance of `990Omega` and it shows full scale deflection for a current of 10mA. Calculate the value of resistance require

Question

A galvanometer coil has a resistance of `990Omega` and it shows full scale deflection for a current of 10mA. Calculate the value of resistance require

A galvanometer coil has a resistance of `990Omega` and it shows full scale deflection for a current of 10mA. Calculate the value of resistance required to convert it into an ammeter of range 1 A.

Monjur Alahi

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2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

Given that `R_(g)=990Omega,I_(g)=10mA=0.01A,I=1A`
Required shunt resistance `=( I_(g)R_(g))/((I-I_(g)))=(0.01xx990)/((1-0.01))=(0.01xx990)/(0.99)=10Omega`

4 views Answered 2023-02-05 15:29