A network has two branches in parallel. One branch contains impedance Z1 and the other branch has impedance Z2. If it is fed from an AC voltage V of frequency f, what does the current through Z1 depend on?

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DDA JE (E&M) Official Paper (Held on 25 April 2018)
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  1. V, Z2
  2. V, Z1
  3. Z1, Z2
  4. V, Z1, Z2

Answer (Detailed Solution Below)

Option 2 : V, Z1
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Detailed Solution

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Concept:

In parallel voltages remain the same.

The current through Z1 depends upon:

  • I1 is directly proportional to the voltage (V)
  • I1 is inversely proportional to the Z1

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