When an electric current is flowing through a wire, the force deflecting the charged particles is the greatest when the wire is
2 answers:
The force is greatest when the wire is perpendicular to the magnetic field.
In fact, the expression for the magnetic force is
where I is the current, L the length of the wire, B the magnetic field intensity and
is the angle between the directions of I and B.
We can see that F is maximum when
, so when 
, so when the wire and the magnetic field are perpendicular to each other.
In fact, the expression for the magnetic force is
where I is the current, L the length of the wire, B the magnetic field intensity and
We can see that F is maximum when
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Answer:
Density of 127 I =
Also,
Explanation:
Given, the radius of a nucleus is given as
.
where,
- A is the mass number of the nucleus.
The density of the nucleus is defined as the mass of the nucleus M per unit volume V.
For the nucleus 127 I,
Mass, M =
Mass number, A = 127.
Therefore, the density of the 127 I nucleus is given by
On comparing with the density of the solid iodine,
Answer:
1) Time interval Blue Car Red Car
0 - 2 s Constant Velocity Increasing Velocity
2 - 3 s Constant Velocity Constant Velocity
3 - 5 s Constant Velocity Increasing Velocity
5 - 6 s Constant Velocity Decreasing Velocity
2) For Red and Blue car y₂ = 120 v = =
= 20 m/s
We get the same velocity for two cars because it is the average velocity of the car at the given interval of time. It is measured for initial and final position.
3) At t = 2s, the cars are the same position, and are moving at the same rate
Position - same
Velocity - same
The position-time graph shares the same spot for two cars.