A voltmeter of a very high resistance is joined in the circuit as shown in figure. The voltage shown by this voltmeter will be ...... .

Options

A. 6 V
B. 2.5 V
C. 5 V
D. 3V

Answer

A

Explanation

6V
Total resistance of circuit , R = 6 + `(8 xx 8)/(8+ 8)`
`= 6 + (64)/(16) `
= 6 + 4 = 10 `Omega`
Current flowing from circuit , I = `(V)/(R) = (10)/(10) = 1` A
`therefore ` P.d. between two ends of 6 `Omega`
= 6 `xx I = 6 xx 1 = 6 ` V