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Electrostatics — Physics STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 SciencePhysicsElectrostatics1 Mark
MCQ
$ABC$ is a right angled triangle in which $AB = 3 \ cm$ and $BC = 4 \ cm$. And $\angle ABC = \pi/2.$ The three charges $+15, +12$ and $-20\ e.s.u.$ are placed respectively on $A, B$ and $C.$ The force acting on $B$  is
  • A
    $125$ dynes
  • B
    $35$ dynes
  • ✓
    $25$ dynes
  • D
    Zero
✓

Answer

Correct option: C.
$25$ dynes
$25$ dynes

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