Homework Help: Physics - Help!

Posted by Sola on Wednesday, April 18, 2007 at 12:54pm.

All, Please just help me in this, I will need you to please give me the clue-thanks.

a flashlamp bulb is marked '2.5V,0.30A' and has to be operated from a dry battery of e.m.f 3.0V for the current p.d. of 2.5V to be produced across it. Why?

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