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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 ammeter before the connection of the resistance is

Options

  1. A3 4 ~A
  2. B6 7 ~A
  3. C3 16 ~A
  4. D1 ~A

Correct answer

C. 3 16 ~A

Step-by-step solution

i₀ R_v=x and (3 i₀ ) ( 3 R_v 3+R_v )= x 3 i₀= 3 16 A

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