Important Questions for Class 11 Physics State Board. We covered all the Important Questions for Class 11 Physics State Board in this post for free so that you can practice well for the exam.
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Important MCQs for Class 11 Physics State Board for Students
The resistance of a wire is R Ω. The wire is uniformly stretched to double its length. Now the resistance of the wire will be :
(A) 0.25R Ω
(B) 0.5R Ω
(C) 2R Ω
(D) 4R Ω
Option d – 4R Ω
The two wires of the same metal have the same lengths, but their cross-section is in a ratio 3 : 1. They are joined in series. The resistance of a thicker wire is 10 22. The total resistance of the combination will be :
(A) 5/2 Ω
(Β) 40/3 Ω
(C) 40 Ω
(D) 100 Ω
Option c – 40 Ω
A wire 1 m long has a resistance of 1 Ω. If it is uniformly stretched, so that its length increases by 25 % then its resistance will be increased by :
(A) 25 %
(B) 50 %
(C) 56.25 %
(D) 77.33 %
Option c – 56.25 %
How many different combinations of three equal resistances can be made?
(A) 2
(B) 3
(C) 4
(D) 9
Option c – 4
We have two wires of copper, the length of one which is 100 cm and the other 200 cm. The ratio of the specific resistance of the first wire to the second wire is :
(A) 1 : 2
(B) 2 : 1
(C) 1 : 1
(D) 1 : 4
Option c – 1 : 1
The length and area of the cross-section of a conductor are doubled, its resistance will be :
(A) Halved
(B) Unchanged
(C) Doubled
(D) Quadrupled
Option b – Unchanged
When the cells are connected in series :
(A) Net emf becomes higher
(B) Net emf becomes lower
(C) Current capacity becomes higher
(D) Current capacity becomes lower
Option a – Net emf becomes higher
The difference in potential between the terminals of a cell, in an open circuit, is called :
(A) Resistance
(B) Capacity
(C) Electromotive force
(D) Potential difference
Option c – Electromotive force
We covered all the important questions for class 11 physics state board above in this post for free so that you can practice well for the exam.
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