1.

An air capacitor of capacitance 0.005 μF is connected to a direct voltage of 500 V. It is disconnected and then immersed in oil with a relative permittivity of 2.5. The energy after immersion is?

A. 275 μJ
B. 250 μJ
C. 225 μJ
D. 625 μJ
Answer» C. 225 μJ


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