MAGNETISM AND CAPACITORS - Quiz

1) What is the unit of capacitance?

Mho Henry Farad Coulomb

2) What is the capacitance value of a capacitor that requires 0.5 coulomb to charge to 35 volt?

0.014 F 0.025 F 0.14 F 0.25 F

3) How the value of capacitance can be decreased?

Increasing the plate area Increasing the resistance of the plates Increasing the distance between the plates Using high dielectric constant material

4) Which is the diamagnetic substance?

Air Steel Water Platinum

5) Which factor affects the polarity of the electromagnet?

Length of the coil Direction of current Strength of current Strength of the magnetic field