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How do ocean trenches form?
A Plates drift apart and form volcanoes.
B Plates collide and push Earth's crust upward.
C Plates drift apart and new crust forms from magma.
D Plates collide and one plate is forced down under the other plate.



Answer :

Explanation:

a battery of 20v is connected across a pair of capacitors of capacitance 4mf and 6mf connected in series cal calculate the potential difference

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