Concept of System
Trending Questions
a) 300 kg m s−1
b) 50 kg m s−1
c) 100 kg m s−1
d) 200 kg m s−1
[1 Mark]
[Momentum]
A mass m1 has a velocity of u and mass m2 has a velocity of v. Then find the individual momentum of mass m1 and mass m2 respectively.
M1v and M2u
Both have zero momentum
M1u and M2v
None of the above
Choose the correct statement:
Statement 1: A body moves along the direction of force.
Statement 2: A body moves in the direction of velocity.
Statement 3: Forces acting inside the system are called interior forces.
Statement 4: Forces acting outside the system are called external forces.
Except statement 2, all other statements are correct.
All statements are correct.
Except statement 2 and 3, all other statements are correct.
Only statement 2 and 4 are correct.
Choose the correct statement:
Statement 1: A body moves along the direction of force.
Statement 2: A body moves in the direction of velocity.
Statement 3: Forces acting inside the system are called interior forces.
Statement 4: Forces acting outside the system are called external forces.
All statements are correct.
Except statement 2, all other statements are correct.
Except statement 2 and 3, all other statements are correct.
Only statement 2 and 4 are correct.
- Elliptical
- Circular
- Parabolic
- Straight
When is the force experienced by a current-carrying conductor placed in a magnetic field largest?
When a current carrying conductor is placed next to a fixed bar magnet, it experiences a force:
In the direction of the magnetic field due to the conductor
In the vertically downward direction
In the vertically upward direction
Opposite to the direction of the magnetic field due to the conductor
A conductor is carrying a current, and a magnet is placed next to it as shown. Now it is known that the magnet moves away from you perpendicular to the plane. What should be the current in another wire (shown in green) in order to keep the magnet in place? (Consider the force only on the north pole)
Opposite to the direction of current in wire 1
Same as direction of current in wire 1
Vertically downwards
Vertically upwards
- Elliptical
- Circular
- Parabolic
- Straight
- The direction of the current is perpendicular to the magnetic field.
- The direction of the current is parallel to the magnetic field.
- The angle between the conductor and the magnetic field is 60∘.
- The angle between the conductor and the magnetic field is 45∘.