q=1μC=1×10−6C r=4 cm=4×10−2 m Potential V=rkq =4×10−29×109×10−6=2.25×105 V. Induced electric field E=−r2kq =16×10−49×109×1×10−6=−5.625×106 V/m
A point charge of magnitude +1 μ C is fixed at (0, 0,0). An isolated uncharged spherical conductor, is fixed with its center at (4,0,0). The…
JEE Main 2013 — Physics Electromagnetism
2013mcqmedium
A point charge of magnitude +1μC is fixed at (0, 0,0). An isolated uncharged spherical conductor, is fixed with its center at (4,0,0). The potential and the induced electric field at the centre of the sphere is :
Official previous-year question
Held on 22 Apr 2013 · Verified 6 Jul 2026.
Options
- A
1.8×105 V and −5.625×106 V/m
- B
0 V and 0 V/m
- C
2.25×105 V and −5.625×106 V/m
- D
2.25×105 V and 0 V/m
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