GATE2012-42

Question

An analog voltmeter uses external multiplier settings. With a multiplier setting of $20\;\text{k}\Omega$, it reads $400\;\text{V}$ and with a multiplier setting of $80\;\text{k}\Omega$, it reads $352\;\text{V}$. For a multiplier setting of $40\;\text{k}\Omega$, the voltmeter reads

• A. $371\;\text{V}$
• B. $383\;\text{V}$
• C. $394\;\text{V}$
• D. $406\;\text{V}$