Answer:

south
cross sectional area of the beam
Explanation:
v = Velocity of ions = 
Number of ions per
= 
Charge density would be the product of number of ions per
and the charge of electrons multiplied by 2 as they are doubly charged.

Current density is given by

The current density is 
The direction of the current density is opposite to the movement of the charged particle. The particles are moving north so the direction of current density will be to the south.
Current is given by

where A is the cross sectional area of the beam .
So the cross sectional area of the beam is required to determine the total current in this ion beam.
An alternating current passes through the primary coil. The alternating current produces a magnetic field that continuously changes direction. The soft iron core increases the strength of the magnetic field.So the transforemer is made of soft iron core.
Retentivity of soft iron is greater than retentivity of steel
soft iron is more magnetised than steel loses its magnetism more rapidly than steel
When you are equally distant from the speakers, their tones interfere constructively. ... <span>By how much should a pair of light rays from a common source differ in distance traveled to produce destructive interference</span>
Answer:
The final velocity is 8 m/s and its direction is along the positive x-axis
Explanation:
Given :
Mass, m₁ = 2000 g = 2 kg
Mass, m₂ = 4000 g = 4 kg
Initial velocity of mass m₁, v₁ = 24i m/s
Initial velocity of mass m₂, v₂ = 0
According to the problem, after collision the two masses are stick together and moving with same velocity, that is,
.
Applying conservation of momentum,
Momentum before collision = Momentum after collision

Substitute the suitable values in the above equation.

