PH-2132
Electric fields
Physics · Secondary 4 · Hard · Electric fields
A metal sphere carries a charge of
+6.0μC. What is the electric field strength at a point 0.20 m from its centre in air?
k=9.0×109 N m2 C−2.
- 1.35×106 N C−1
- 1.35×105 N C−1
- 5.4×104 N C−1
- 2.7×107 N C−1
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