Two light bulbs, B₁ and B₂, are connected to a battery having appreciable internal resistance as shown in the figure. What happens to the brightness of bulb B₁ when we close the switch S? A) The brightness of B₁ increases permanently. B) The brightness of B₁ decreases permanently. C) The brightness of B₁ does not change. D) The brightness of B₁ increases temporarily but gradually decreases back to its original brightness. E) The brightness of B₁ decreases temporarily but gradually increases back to its original brightness.

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The Answer of Two light bulbs, B₁ and B₂, are connected to a battery having appreciable internal resistance as shown in the figure. What happens to the brightness of bulb B₁ when we close the switch S? A) The brightness of B₁ increases permanently. B) The brightness of B₁ decreases permanently. C) The brightness of B₁ does not change. D) The brightness of B₁ increases temporarily but gradually decreases back to its original brightness. E) The brightness of B₁ decreases temporarily but gradually increases back to its original brightness.

Two Light Bulbs, B1 and B2, Are Connected to a Battery

Two Light Bulbs, B₁ and B₂, Are Connected to a Battery