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Grade 12Electric Current

Ans plzz i don't get this............what is combination and how to know

Question image for Ans plzz i don't get this............what is comb
Profile image of Neha khavare
7 Years agoGrade 12
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1 Answer

Profile image of Vikas TU
7 Years ago
The resistrance shown here is in parallel
so Equivwlent of 4ohm and 4 ohm is 2 ohm . (First and last resistance)
now ideally resistance of ammeter is 0 ohm , so short circuit ammeter and solve for equivalent resistance and  find the current flowing through Battery , 
It comes out to be 3/8 amp, then find the current in ammeter by current division rule , it will come out to be as 1/8 amp.
so, i think A would be corret option,