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Question

Physics Question on Semiconductor electronics: materials, devices and simple circuits

To reduce the range of voltmeter, its resistance need to be reduced. A voltmeter has resistance RoR_o and range VV. Which of the following resistances when connected in parallel will convert it into a voltmeter of range Vn\frac Vn?

A

nRonR_o

B

(n+1)Ro(n+1)R_o

C

(n1)Ro(n-1)R_o

D

None of these

Answer

None of these

Explanation

Solution

The correct option is (D): None of these.