1001 PYQ |Tips & Tricks | Imp Q ,Topic & Derivations | CBSE XII Class 12 th 2025 55 -1-1 Solution

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🔥 CBSE Class 12 Board Exam 2025 Physics | Set 55-1-1 Complete Full Paper Discussion | Answers | Solutions | Step by Step Explanation | Analysis | PDF Download 🔥
Is video me CBSE Class 12 Board Exam 2025 Physics (Set 55-1-1) ka complete paper detail me solve kiya gaya hai — board exam pattern, marking scheme aur proper answer presentation ke saath.
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00.00 Intro
📌 Question Discussed:
2:17
Figure shows variation of Coulomb force (F) acting between two point charges with 1/(r ^ 2) r being the separation between the two charges (q_{1}, q_{2}) and (q_{2}, q_{3}) If q_{2} is positive and least in magnitude, then the magnitudes of q_{1} q_{2} and q_{3} : are such that
5:18
Two wires P and Q are made of the same material. The wire Q has twice the diameter and half the length as that of wire P. If the resistance of wire P is R, the resistance of the wire Q will be

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CBSE XII 2025 55 11

(A) R

(B) R/2

(C) R/8

(D) 2R
8:11
A 1 cm segment of a wire lying along x-axis carries current of 0.5 A along +x direction. A magnetic field vec B = (0.4mT) hat j +(0.6 mT) hat k switched on, in the region. The force acting the

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CBSE XII 2025 55 11

(A) (2 hat j +3 hat k ) mN

(C) ( 6 hat j +4 hat k ) mN

(Β) (-3 hat j +2 hat k ) mu*N

(D) (-4 hat j +6 hat k ) x mu*N
12:04
A coil has 100 turns, each of area 0.05 m² and total resistance 1.5 Ω. It is inserted at an instant in a magnetic field of 90 mT, with its axis parallel to the field. The charge induced in the coil at that instant is:

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CBSE XII 2025 55 11

(A) 3.0 mC

(C) 0.45 C

(B) 0.30 C

(D) 1.5 C
14:58
You are required to design an air-filled solenoid of inductance 0.016 H having a length 0.81 m and radius 0.02 m. The number of turns in the solenoid should be

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CBSE XII 2025 55 11

(A) 2592

(C) 2976

(B) 2866

(D) 314
18:15
A voltage v = vo sin ot applied to a circuit drives a current i = i sin (ot + 4) in the circuit. The average power consumed in the circuit over a cycle is

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CBSE XII 2025 55 11

(A) Zero

(B) io vo cos

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