Two charges $$q1$$ and $$q2$$ are placed $$30$$ cm apart, as shown in the figure. A third charge $$q3$$ is moved along the arc of a circle of radius $$40$$ cm from C to D. The change in the potential energy of the system is $$q34$$πε$$0k$$, where k is

Question

Two charges $$q1$$ and $$q2$$ are placed $$30$$ cm apart, as shown in the figure. A third charge $$q3$$ is moved along the arc of a circle of radius $$40$$ cm from C to D. The change in the potential energy of the system is $$q34$$πε$$0k$$, where k is

Infinity Learn · Accepted Answer

$$u1=14$$πε$$0q1q230$$ x $$10-2+q1q340$$ x $$10-2+q2q350$$ x $$10-2u2=14$$πε$$0q1q230$$ x $$10-2+q1q340$$ x $$10-2+q2q310$$ x $$10-2$$∆$$u=u2-u1=q2q34$$πε$$0$$ x $$102110-150$$ $$=q2q34$$πε$$0$$ x $$450$$ x $$100=q34$$πε$$08q2$$   ∴$$k=8q2$$

Two charges q₁ and q₂ are placed 30 cm apart, as shown in the figure. A third charge q₃ is moved along the arc of a circle of radius 40 cm from C to D. The change in the potential energy of the system is $\frac{q_{3}}{4 {πε}_{0}} k$ , where k is

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Two charges q1 and q2 are placed 30 cm apart, as shown in the figure. A third charge q3 is moved along the arc of a circle of radius 40 cm from C to D. The change in the potential energy of the system is q34πε0k, where k is

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Two charges q₁ and q₂ are placed 30 cm apart, as shown in the figure. A third charge q₃ is moved along the arc of a circle of radius 40 cm from C to D. The change in the potential energy of the system is $\frac{q_{3}}{4 {πε}_{0}} k$ , where k is