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KCET2015PhysicsWaves and Sound

Three resistances ( 2 , 3 ) and ( 4 ) are connected in parallel. The ratio of currents passing through them when a potential difference is applied across its ends will be

Options

  1. A( 6: 3: 2 )
  2. B( 6: 4: 3 )
  3. C( 5: 4: 3 )
  4. D( 4: 3: 2 )

Correct answer

B. ( 6: 4: 3 )

Step-by-step solution

According to Ohm's law, we have ( V= R ). Since the resistors are connected in parallel, therefore, ( V ) is constant. So, [ array l I R= constant I 1 R I₁ 1 2 , I₂ 1 3 ^ I₃ 1 4 I₁: I₂: I₃=6: 4: 3 array ]

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