An electromagnetic flowmeter applies a magnetic field of0.20 {\rm t} to blood flowingthrough a coronary artery at a speed of 15 {\rm cm/s}.
what force is feltby a chlorine ion with a single negative charge?

Explanation:

The force exerted by a magnetic field on a charged particle is given by

where

q is the charge of the particle

v is the speed

B is the magnetic field strength

In this problem we have:

is the strength of the magnetic field

is the velocity

is the magnitude of the charge of a single chlorine ion

Substituting into the equation,

a solenoid is created by wrapping a l = 90 m long wire around a hollow tube of diameter d = 4.5 cm.   the wire diameter is d = 0.9 mm.   the solenoid wire is then connected to a power supply so that a current of i = 9 a flows through the wire.

randomized variablesl = 90 m

d = 4.5 cm

d = 0.9 mm

i = 9 a                                          

write an expression for the number of turns, n, in the solenoid. you do not need to take into account the diameter of the wire in this calculation.

calculate the number of turns, n, in the solenoid.

write an expression for the length of the solenoid (l2) in terms of the diameter of the hollow tube d.

calculate the length of the solenoid (l2)   in meters.

calculate the magnitude of the magnetic field at the center of the solenoid in teslas.

explanation:

b. lifting dumbbell weight at 20-degree angle from the body after a 45-degree angle