Verified Solution • 2025–26 Session
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QAIPMT-2008-Ph-2251: NEET 2008 Physics - Class 12 AIPMT-2008-Ph-2251 Solution: In the circuit shown, the current through the \(4 \) resistor…
In the circuit shown, the current through the resistor is 1 amp when the points P and M are connected to a d.c. voltage source. The potential difference between the points M and N is
Multiple Choice Options
- A 0.5 volt
- B 3.2 volt
- C 1.5 volt
- D 1.0 volt
Step-by-Step Verified Solution
As the P.D. between 4 � and 3 � (in parallel), are the same,
4 _ 1 amp = 3 _ i 1 _ i 1 = 4 3 A
Total resistance of 4 � and 3 � = 12/7 � .
Current in MQP (upper one) = 1 + 4 3 = 7 3 A
_ P . D . = 12 7 _ 7 3 = 4 V
Current in MNP = 4 1.25 = 4 _ 4 5 = 16 5 A
_ P.D. across 1 � = 16 5 A _ 1 � = 16 5 v o l t
_ P.D. across 1 � = 3.2 volt.