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Paragraph: An ammeter and a voltmeter are connected in series to a battery with emf E =6 volt and negligible resistance. When a resistance R =3 is connected in parallel to voltmeter, reading of ammeter increases three times while that of voltmeter reduces to one third. Question: Reading of voltmeter after the connection of resistance is

Options

  1. A1 Volt
  2. B3 Volt
  3. C9 / 2 Volt
  4. D3 / 2 Volt

Correct answer

D. 3 / 2 Volt

Step-by-step solution

(6- x ) i ₀ R _ A and (6- x 3 )= (3 i ₀ ) R _ A 6-x 6- x 3 = 1 3 x = 9 2 ~V after connection = 3 2 ~V

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