MAGNETISM AND CAPACITORS - Quiz

1) What is the unit of Magneto Motive Force (MMF)?

Ampere / m² Ampere - m Ampere - turns Ampere / turns

2) What is the unit of permeance?

Ampere - turns Weber/Ampere turns Ampere turns/Weber Weber/Square metre

3) Which rule is applied to find the direction of magnetic fields in a solenoid coil?

Cork screw rule Right hand palm rule Flemings left hand rule Flemings right hand rule

4) What precaution to be taken before connecting the different voltage rating capacitors in series?

All the capacitors must be same manufacturer Each capacitors voltage drop must be less than its voltage rating Total capacitors value must be less than the lowest value of capacitor Break down voltage of each capacitor must be same

5) Which material is the paramagnetic substance?

Cleat wiring Copper Bismuth Graphite