(A) Kinetic energy is conserved but total energy is not conserved
(B) Kinetic energy and momentum is conserved
(C) Momentum is conserved but kinetic energy is not conserved
(D) None of the above
Tag: Physics Mcq
Transformer works on the principle of:
(A) Mutual induction
(B) Self induction
(C) Half wave rectification
(D) Full wave rectification
In Fleming right hand rule the thumb indicates:
(A) Magnetic field
(B) Induced current
(C) Electric field
(D) Force
Lenz’s law is based on the law of conservation of:
(A) Energy
(B) Charge
(C) Mass
(D) Momentum
Magnetic flux is maximum when angle between magnetic field and vector area is:
(A) 0 Degree
(B) 45 Degree
(C) 90 Degree
(D) 180 Degree
The magnetic field inside the current carrying wire varies:
(A) Inversely with r2
(B) Inversely with r
(C) Directly with r
(D) Directly with r2
The resistance of pure metal increases with:
(A) Increase in pressure
(B) Increase in temperature
(C) Decrease in temperature
(D) Decrease in pressure
The magnitude of the current in metals is proportional to the applied as long as temperature of conductor is kept constant. It is statement of:
(A) Gauss’s law
(B) Ohm’s law
(C) Joule’s law
(D) Ampere’s law