An infinite charged wire with charge per unit length lambda lies along the central axis of a cylindrical surface of radius r and
1 answer:
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A)
The magnetic field at the center of a coil of N turns is given by
where
I is the current in the coil
N is the number of turns
R is the radius of the coil
Here we have
I = 6.5 A is the current in the coil
N = 100 is the number of turns
is the radius of the coil
Substituting,
B) The force points north
The direction of the force on a positive ion in water can be found by using the right-hand rule. In fact, we have:
- Index finger: direction of motion of the ion --> towards east
- Middle finger: direction of magnetic field --> downward
- Thumb: direction of the force --> towards north
So, the force points north.
C)
The magnitude of the magnetic force on a charged particle moving perpendicularly to the field is
where
q is the charge of the particle
v is the velocity
B is the magnitude of the magnetic field
In this case, we have
is the charge
is the velocity
is the magnetic field strength
Substituting,
Answer:
9.21954 m/s
54 m/s²
Angle is zero
Explanation:
r = Radius of arm = 1.5 m
= Angular velocity = 6 rad/s
The horizontal component of speed is given by
The vertical component of speed is given by
The resultant of the two components will give us the velocity of hammer with respect to the ground
The velocity of hammer relative to the ground is 9.21954 m/s
Acceleration in the vertical component is zero
Net acceleration is given by
Net acceleration is 54 m/s²
As the acceleration is towards the center the angle is zero.