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Figure 7
The potentiometer has a driver cell D of emf and an internal resistance of , as shown in Figure 7…
The potentiometer has a driver cell D of emf $6\text{ V}$ and an internal resistance of $2\ \Omega$, as shown in Figure 7 below.
Calculate:
(a)
the current flowing through potentiometer wire AB.
(b)
the potential gradient across the wire AB.
Answer
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From ISC 2025 Improvement Physics Paper 1, question 10(i).