Which of the following tends to quickly lose its magnetic properties?
O
A. A bar magnet
OB. A horseshoe magnet
O
C. A permanent magnet
O
D. A temporary magnet

A6.0-μf air-filled capacitor is connected across a 100-v voltage source. after the source fully charges the capacitor, the capacitor is immersed in transformer oil (of dielectric constant 4.5). how much additional charge flows from the voltage source, which remained connected during the process?