A) 99995
B) 9995
C) \[{{10}^{3}}\]
D) \[{{10}^{5}}\]
Correct Answer: B
Solution :
Voltage sensitivity \[=\frac{\text{Current sensitivity}}{\text{Resistance of galvanometer}\,\text{G}}\] Þ \[G=\frac{10}{2}=5\,\Omega \]. Here \[{{i}_{g}}=\] Full scale deflection current \[=\frac{150}{10}=15\,mA\]. V = Voltage to be measured = 150 ´ 1 = 150 V. Hence \[R=\frac{V}{{{i}_{g}}}-G=\frac{150}{15\times {{10}^{-3}}}-5=9995\,\Omega \].
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