A potentiometer circuit consists of a battery of e.m.f 5v and internal resistance 10 ohms connected in series with a 30 ohms resistor and a potentiometer wire AB of length 1m and resistance 20 ohms calculate:the total resistance of the circiuit ,the current flowing in the cicuit,the p.d across the wire AB.?

Question

bobpursley · Answer

total resistance=10+30+20= ? current= 5v/totalresistance I dont know where ab is, if it is the battery, then Vab=5-10*current

Oyewola jesulotito · Answer

Very wonderful but not complex

Samuel · Answer

A potentiometer circuit consists of a battery of emf 5v and internal resistance 1.0 ohm connected in series with a potentiometer wire AB of length 1.0m and resistance 2.0 ohms. calculate the emf of a dry cell which can be balanced across 60cm of the wire AB