A microameter has a resistance of `100 omega and a full scale range of ` 50 muA`. It can be used as a voltmeter or as a higher range ammeter provides a resistance is added to it . Pick the correct range and resistance combination(s)
A
` 50 V ` range with `10 komega` resistance in series
B
` 10 V ` range with `200 komega` resistance in series
C
` 5 mA ` range with `1 omega` resistance in parallel
D
` 10 mA ` range with `1 omega` resistance in parallel
Text Solution
Verified by Experts
The correct Answer is:
B, C
For `V = I_(g)(G + R) = 5xx10^(-5)[ 100 + 200, 000] = 10v` For ` I = I_(g) ((G)/(S) + 1) = 5 xx 10^(-5)[ (100)/(1) + 1] = 5 mA.`
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