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AP EAMCET · PHYSICS · Current Electricity

In given figure, an ammeter reads \(5 \mathrm{~A}\) and voltmeter reads \(40 \mathrm{~V}\). The actual value of resistance \(R\) is

  1. A \(8 \Omega\)
  2. B greater than \(8 \Omega\)
  3. C less than \(8 \Omega\)
  4. D \(200 \Omega\)
Verified Solution

Answer & Solution

Correct Answer

(B) greater than \(8 \Omega\)

Step-by-step Solution

Detailed explanation

\( \text { Current in ammeter, } I=5 \mathrm{~A} \) We know that, voltmeter has a very high resistance. Hence, current flowing through voltmeter is very low.…