$[10$ marks$]$ An ohmmeter as shown in Figure $2$ with $Eb=1\mathrm{.}5V,R1=15k,Rm=R2=50$ and IFSD$=50A.$ Calculate,

$Rx$ at $0\mathrm{.}5FSD,$

when $Eb=1\mathrm{.}2V$ what is the value of R $2$ to get full$-$scale current and

when $Eb=1\mathrm{.}2V$ what is the value of Rx at half$-$scale current.

Figure $1$

$2.[10$ marks$]$ An ohmmeter as shown in Figure $2$ with $Eb=1\mathrm{.}5V,R1=15k,Rm=R2=50$ and IFSD$=50A.$ Calculate,

$Rx$ at $0\mathrm{.}5FSD,$

when $Eb=1\mathrm{.}2V$ what is the value of R $2$ to get full$-$scale current and

when $Eb=1\mathrm{.}2V$ what is the value of Rx at half$-$scale current.

Figure $1$

$2.[10$ marks$]$ An ohmmeter as shown in Figure $2$ with $Eb=1\mathrm{.}5V,R1=15k,Rm=R2=50$ and IFSD$=50A.$ Calculate,

$Rx$ at $0\mathrm{.}5FSD,$

when $Eb=1\mathrm{.}2V$ what is the value of R $2$ to get full$-$scale current and

when $Eb=1\mathrm{.}2V$ what is the value of Rx at half$-$scale current.