Bihar Board Class 11 Physics Syllabus. We covered all the Bihar Board Class 11 Physics Syllabus in this post for free so that you can practice well for the exam.
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Bihar Board Class 11 MCQs of Physics for Students
The capacitance of two capacitors is 4 µF, 6 μF, and P.D. of 30 V, and 20 V respectively. When the parallel combination of condensers is connected with a thin wire in parallel, their total energy will :
(A) reduce by 120 μ J
(B) increase by 240 μ J
(C) reduce by 240μ J
(D) be unchanged
Option a – reduce by 120 μ J
In Electrostatic generators, charges are carried into the shell on a rapidly moving belt made of
(A) superconducting material
(B) semi-conducting material
(C) conducting material
(D) insulating material
Option d – insulating material
Which of the following instrument works on the principle of action of sharp points?
(A) Cyclotron
(B) Van de Graff generator
(C) Dynamo
(D) Induction coil
Option b – Van de Graff generator
Van de Graff generator is :
(A) an electrostatic machine
(B) an electromagnetic machine
(C) used to produce changed particles
(D) an electrodynamic machine
Option a – an electrostatic machine
A Van de Graaff generator is used for
(A) to produce high potential
(B) to accelerate charged particles like protons, and deuterons
(C) in the study of nuclear physics
(D) all of these
Option d – all of these
The P.D. across the plates of a condenser is 60 V and its capacity is 12 uF. Another condenser of 24 uF is connected with it in series and its free plate is earthed. The P.D. across 24 uF capacitor will be :
(A) 90 V
(B) 60 V
(C) 30 V
(D) 20 V
Option c – 30 V
Two capacitors of 3 uF and 6 μF are connected in series across a P.D. of 120 V. The P. D. across 3 μF capacitor is :
(A) 50 V
(B) 80 V
(C) 110 V
(D) 40 V
Option b – 80 V
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