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JAMB - Physics (2011 - No. 26)
The capacitance of a parallel plate capacitor is 20 μf in air and 60 μf in the presence of a dielectric. What is the dielectric constant?
0.3
6.0
3.0
2.0
Explication
Dielectric constant = (c)/c
°
= (60)/20 = 3
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