Skip to content
PhysicsNEET 2019Cells, EMF, internal resistance, combinations

Current Electricity

Six similar bulbs, each of resistance , are connected to a DC source of emf (zero internal resistance) in two groups of three bulbs each, section A and section B, with the three bulbs of each section in parallel with each other and the two sections in series with each other and the source. The ratio of the power consumed by the bulbs when (i) all six are glowing, to when (ii) only two bulbs from section A and one bulb from section B are glowing (the rest disconnected), will be:

  1. A.
  2. B.✓
  3. C.
  4. D.

You have the answer. The worked solution — and why the other three were written — is part of a paid pack.

More from this chapter in past papers

From Physics › Current Electricity › Cells, EMF, internal resistance, combinations — lectures, notes and every past question on it.

Last revised . Found a mistake? Tell us — corrections are the fastest thing we act on.

ShareWhatsAppTelegram