Given,
E1=1.5V
l1=36cm
E2=2.5v
l2=?
AS we know,
E2E1=l2l1
2⋅51⋅5=l236
53=l236
l2=60cm
NEET UG 2021 — Physics Electromagnetism
In a potentiometer circuit a cell of EMF 1.5V gives balance point at 36cm length of wire. If another cell of EMF 2.5V replaces the first cell, then at what length of the wire, the balance point occurs?
Held on 30 Apr 2021 · Verified 9 Jul 2026.
64cm
21.6cm
60cm
62cm
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