2 and 3 [a] larger. b] smaller. [c] the same. Il. The E-field at the surface of

Question

2 and 3

[a] larger. b] smaller. [c] the same. Il. The E-field at the surface of a charged conducting solid sphere of radius R carrying a charge q is measured to be 180.0 N/C. The magnitude of the E-field at a point R/2 away from the center is a] zero [b] 90.0 N/C. [c] 180.0 N/C. Ill. Two charges,-Q at r =-1 m and 4Q at z 2 m, are arranged as shown in the diagram. In which region (A, B or C) along the r-axis is there a point, at which the net electric field is zero? Region A A Q x [m] [a] Region A b] Region B [cl Region C IV. An electric dipole is situated along the y-axis with its center at the origin. The net E-field at point P on the r-axis will point

Explanation / Answer

2. (a) Zero , because in conductor electric field inside is always zero.

3.(a) Region A , because magnitude of -Q is less than the magnitude of 4Q, and both are oppositely charged.

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