5) Which factor affects the polarity of the electromagnet?

Length of the coil

Direction of current

Strength of current

Strength of the magnetic field

Answer is:

Direction of current

Magnetism and Capacitors MCQ with Answers

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

Ampere / m²

Ampere - m

Ampere - turns

Ampere / turns

Answer is:

Ampere - turns

7) What is the unit of permeance?

Ampere - turns

Weber/Ampere turns

Ampere turns/Weber

Weber/Square metre

Answer is:

Weber/Ampere turns

8) 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

Answer is:

Right hand palm rule

9) 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

Answer is:

Each capacitors voltage drop must be less than its voltage rating

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5) Which factor affects the polarity of the electromagnet?

Direction of current

Magnetism and Capacitors MCQ with Answers

Related Magnetism and Capacitors MCQ with Answers

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

Ampere - turns

7) What is the unit of permeance?

Weber/Ampere turns

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

Right hand palm rule

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

Each capacitors voltage drop must be less than its voltage rating

Magnetism and Capacitors MCQ with Answers