MHT CET (PCB) 2025 9th April Morning Shift | Electrostatics Question 5 | Physics

The charges are arranged at the four corners of square $A B C D$ of side ' $d$ ' as shown in figure. The work required to put this arrangement together is given by

MHT CET (PCB) 2025 9th April Morning Shift Physics - Electrostatics Question 2 English

$\frac{-9 q^2}{4 \pi \varepsilon_0 d}$

$\frac{-7 q^2}{4 \pi \varepsilon_0 d}$

$\frac{-q^2}{4 \pi \varepsilon_0 d}[9-2 \sqrt{2}]$

$\frac{-q^2}{4 \pi \varepsilon_0 d}[9+2 \sqrt{2}]$

MHT CET (PCB) 2024 22th April Evening Shift

MCQ (Single Correct Answer)

-0

Three charges $Q,-2 q$ and $-2 q$ are placed at the vertices of an isosceles right-angled triangle as shown in figure. The net electrostatic potential energy is zero if $Q$ is equal to

MHT CET (PCB) 2024 22th April Evening Shift Physics - Electrostatics Question 6 English

$\frac{\mathrm{q}}{2}$

$\sqrt{2} q$

$\frac{q}{\sqrt{2}}$

$\frac{q}{2 \sqrt{2}}$

MHT CET (PCB) 2024 22th April Evening Shift

MCQ (Single Correct Answer)

-0

A large insulated sphere of radius ' $r$ ', charged with ' $Q$ ' units of electricity, is placed in contact with a small insulated uncharged sphere of radius ' R ' and is then separated. The charge on the smaller sphere will now be

$\mathrm{Q}(\mathrm{r}+\mathrm{R})$

$\mathrm{Q}(\mathrm{r}-\mathrm{R})$

$\frac{Q}{r+R}$

$\frac{\mathrm{QR}}{\mathrm{R}+\mathrm{r}}$

MHT CET (PCB) 2024 22th April Evening Shift

MCQ (Single Correct Answer)

-0

The wrong statement out of the following statements is

A negative test charge experiences a force opposite to the direction of the field.

A tangent drawn to a line of force represents the direction of the electric field.

Field lines never intersect.

The electric field lines form closed loop.

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