SSC JE Electrical Engineering 2014 Set 1 Paper

Question : 119 of 200

Marks: +1, -0

A resistance R is measured by ammeter-voltmeter method. The voltmeter reading is 200 V and its internal resistance is 2 K. If the ammeter reading is found to be 2 A, then value of R is

105.3 Ω
100.0 Ω
95.3 Ω
90.3 Ω

Validate

Solution:

Voltmeter reading,
⇒

200 ={ 2 ×2000} /{ 2000 ×R}×R

⇒

R = 105.3Ω

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