The given diagram can be redrawn as follow: 
The potential across AC, VAC=RBC+RACRAC×V0 43R0+4R+R0RR04R+R0RR0×V0=3R0+16R4RV0
The sliding contact C is at one fourth of the length of the potential wire (A B) from A as shown in the circuit diagram. If the resistance of the…
NEET UG 2022 — Physics Electromagnetism
2022mcqhard
The sliding contact C is at one fourth of the length of the potential wire (AB) from A as shown in the circuit diagram. If the resistance of the wire AB is R0, then the potential drop (V) across the resistor R is: 
Official previous-year question
Held on 30 Apr 2022 · Verified 9 Jul 2026.
Options
- A
3R0+16R4 V0R
- B
3R0+R4V0R
- C
4R0+R2V0R
- D
2R0+3R2V0R
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