A+Q2PXA spherical shell insulator is shown in cross-section in the figure. It has inner radius a, outer radius b,and the point P is located a distance r from the origin. The shell has a total charge Q uniformlydistributed throughout its volume. Which is a correct use of Gauss's law to find the magnitude of theelectric field E at point P?O E 4r² = Qr³ /(so( b³ - a³ ))OE 4 π b² = Q(b³-a³) / (solr³-a³ ))OE 4 π b² = Q(r³-a³) / (so(b³-a3³ ))OE 4T r² = Q(b³-a³) / (so(r³-a³))OE4 r² = Q(r³-a³) / (so (b³-a³))

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