A hollow metal sphere of radius 10 cm is charged such that potential on its surface is 10 V .Four statement are stated. Which is true?

STATEMENT -1: The Potential at the center is 10 V

STATEMENT -2 All the charged reside at the outer surface

STATEMENT -3 Potential at a point 5 cm away from the surface is 10 V

STATEMENT -4 Potential at a point 5 cm from the center of the sphere is 10 V

To forward bias a diode a ________ potential is needed on the ________ and a ________ is needed on the ________.

negative, cathode, positive, anode

negative anode positive cathode

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