184

You visited us 184 times! Enjoying our articles? Unlock Full Access!

Byju's Answer

Standard XII

Physics

Potential Energy of a System of Multiple Point Charges

Two Charges Q...

Question

Two Charges $Q_{1}$ and $Q_{2}$ are as shown in the figure. A third charge $Q_{3}$ is moved from points A to B along a circular path. Change in potential energy of the system is

k Q_{1} Q_{2} Q_{3}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

4 k Q_{1} Q_{2}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

4 k Q_{2} Q_{3}

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

\frac{2}{3} k Q_{2} Q_{3}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is C $4 k Q_{2} Q_{3}$
$Δ U = U_{f} - U_{i} U_{f} = k [\frac{Q_{1} Q_{2}}{0.6} + \frac{Q_{2} Q_{3}}{0.2} + \frac{Q_{3} Q_{1}}{0.8}] Δ U = U_{f} - U_{i} = k Q_{2} Q_{3} [\frac{1}{0.2} - 1] = 4 k Q_{2} Q_{3}$

Suggest Corrections

Similar questions

Q. Two Charges

Q_{1}

and

Q_{2}

are as shown in the figure. A third charge

Q_{3}

is moved from points A to B along a circular path. Change in potential energy of the system is

Q. Two charges

q_{1}

and

q_{2}

are placed

30 cm

apart, as shown in the figure. A third charge

q_{3}

is moved along the arc of a circle of radius

40 cm

from

C

D

. The change in the potential energy of the system is

\frac{q_{3}}{4 π ϵ_{0}} k

, where

k

Q. Two charges

q_{1}

and

q_{2}

are placed

30 cm

apart, as shown in the figure. A third charge

q_{3}

is moved along the arc of a circle of radius

40 cm

from

C

D

. The change in the potential energy of the system is

\frac{q_{3}}{4 π ϵ_{0}} k

, where

k

Q. Two charges

q_{1}

and

q_{2}

are located

30 cm

apart, as shown in the figure. A third charge

q_{3}

is moved along tthe arc of a circle of radius

40 cm

from

C

D

. The change in the potential energy of the system is

\frac{n q_{2} q_{3}}{4 π ϵ_{0}}

. Find

n

Two charges $q_{1}$ and $q_{2}$ are placed 30cm apart, as shown in figure. A third charges $q_{3}$ 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 $\frac{q_{3}}{4 π ϵ_{0}} k$ , where k is

Join BYJU'S Learning Program

Two Charges Q1 and Q2 are as shown in the figure. A third charge Q3 is moved from points A to B along a circular path. Change in potential energy of the system is

The correct option is C 4kQ2Q3ΔU=Uf−Ui Uf=k[Q1Q20.6+Q2Q30.2+Q3Q10.8]ΔU=Uf−Ui=kQ2Q3[10.2−1]=4kQ2Q3

Two Charges $Q_{1}$ and $Q_{2}$ are as shown in the figure. A third charge $Q_{3}$ is moved from points A to B along a circular path. Change in potential energy of the system is

The correct option is C $4 k Q_{2} Q_{3}$
$Δ U = U_{f} - U_{i} U_{f} = k [\frac{Q_{1} Q_{2}}{0.6} + \frac{Q_{2} Q_{3}}{0.2} + \frac{Q_{3} Q_{1}}{0.8}] Δ U = U_{f} - U_{i} = k Q_{2} Q_{3} [\frac{1}{0.2} - 1] = 4 k Q_{2} Q_{3}$