Need help answering questions 23 and 24. Magnetism

The left-hand and right-hand rules used to relate magnetic force, magnetic field direction, and charge movement were developed by the English electrical engineer, Sir John Flemming (1849 - 1945). He also invented the vacuum diode as shown in the diagram. Early, vacuum tube diodes were the basis for computers switches but have since been replaced by solidstate transistors that are much smaller, more reliable, and more energy efficient. 23. When a current is passed through \"Emu\" \"'0'?\" . Q 0'55 the metal filament, electrons are " ejected through a process called positively charged thermionic emission. These \"it\"? electrons accelerate through the vacuum towards the positively negative fitnmenr charged plate shown in the vacuum tube on the right. Describe how the electron's motion will be affected when the south end of a bar magnet is placed as shown. Use the information and diagram below to answer question 24. Some artificial hearts pump the ions in blood using both electrical and magnetic fields as WOW V955?! shown in the cross sectional diagram. Positive ions are drawn to the negative plate while negative ions are drawn to the positive . - . plate. The motion of the ions will then be ' a perpendicular to the magnetic field which I37 causes them to deflect along the length magnet-'5 of the blood vessel. 24. Identify the necessary magnetic polarity of A and B that would cause blood to flow out of the page in the diagram