If the potential difference across the ends of a conductor is halved, what happens to the current flowing through it?

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RRB JE Previous Paper 15 (Held On: 27 May 2019 Shift 1)
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  1. It gets increased
  2. It gets doubled
  3. It gets decreased
  4. It gets halved

Answer (Detailed Solution Below)

Option 4 : It gets halved
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Detailed Solution

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 ⇒ According to ohm's law, the Potential difference is directly proportional to the Current.

 ⇒ V œ I

 ⇒ V = IR ,where R is constant (Resistance)

⇒ V' =1/2 V then I' = 1/2 I

  if the potential difference gets half then the current is also getting half.

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