Class 8 ICSE Physics Syllabus. We covered all the Class 8 ICSE Physics Syllabus in this post for free so that you can practice well for the exam.
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Class 8 ICSE Physics MCQs for Students
Force on current-carrying conductor kept parallel to the magnetic field is ….
(A) zero
(B) maximum
(C) infinity
(D) varying
Option a – zero
Force on the current carrying conductor of length 2m kept inclined at 30° with the magnetic field of induction 4T and carrying current 4A is :
(A) 4 N
(B) 8 N
(C) 12 N
(D) 16 N
Option d – 16 N
A wire of length 1.5 m carrying current 10A kept in uniform magnetic field 2T, experiences a force of 15N. The direction of the conductor with a magnetic field makes an angle :
(A) 30°
(B) 60°
(C) 45°
(D) 90°
Option a – 30°
A +ve charge moves vertically upwards in a magnetic field directed towards the north. Force on charge will be towards
(A) north
(B) east
(C) west
(D) downward
Option c – west
For deflection of the magnetic needle due to the current carrying a straight conductor, the axis of the needle is placed :
(A) parallel to conductor
(B) perpendicular to the conductor
(C) in any direction
(D) in any direction except perpendicular
Option d – in any direction except perpendicular
The direction of the force on the current-carrying conductor in a magnetic field is given by :
(A) Fleming’s right-hand rule
(B) right-hand palm rule
(C) Flemings’s left-hand rule
(D) right-hand screw rule
Option c – Flemings’s left-hand rule
Two charges +q and -q are attached to the two ends of a light rod of length L. The system is given a velocity of v perpendicular to magnetic field 3. The magnetic force on the system of charges and magnitude of the force on one charge are respectively :
(A) Zero, zero
(B) Zero, qvB
(C) 2qvB, zero
(D) 2qvB, qvB
Option b – Zero, qvB
An elastic circular wire of length 1 carries a current I in an anticlockwise direction. It is placed in a uniform magnetic field B (out of paper) such that is perpendicular to the direction of B. it’s plane The wire will experience :
(A) No force
(B) A stretching force
(C) A compressive force
(D) A torque
Option b – A stretching force
The force experienced by charge particles in a magnetic field is :
(A) Fleming’s force
(B) Lorentz’s force
(C) Oersted’s force
(D) Faraday’s force
Option b – Lorentz’s force
We covered all the class 8 icse physics syllabus above in this post for free so that you can practice well for the exam.
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