Achieve CUET (UG) Physics Practice Book>Chapter 1 - Electric Charges and Fields>Exercise>Q 33

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A charge $- q$ is placed at $(0, 0, - z)$ , where, $z << a$ . On releasing $- q$ from this position,

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Important Questions on Electric Charges and Fields

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Achieve CUET (UG) Physics Practice Book>Chapter 1 - Electric Charges and Fields>Exercise>Q 34

Find the net force on

- 2 q

.

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Achieve CUET (UG) Physics Practice Book>Chapter 1 - Electric Charges and Fields>Exercise>Q 35

In MKS system of units,

ε_{0}

is equal to

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Achieve CUET (UG) Physics Practice Book>Chapter 1 - Electric Charges and Fields>Exercise>Q 36

Three charges each of

5 \times 10^{- 6} C

are placed at three corners of an equilateral triangle of side

10 c m

. The force in

N

exerted on another charge of

1 μC

placed at the centre of the triangle in newton will be:

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Achieve CUET (UG) Physics Practice Book>Chapter 1 - Electric Charges and Fields>Exercise>Q 37

Three equal charges, each having a magnitude of

2.0 \times 10^{- 6} C,

are placed at the three corners of a right angled triangle of side 3cm, 4cm and 5cm. The force (in magnitude) on the charge at the right angled corner is

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Achieve CUET (UG) Physics Practice Book>Chapter 1 - Electric Charges and Fields>Exercise>Q 38

The charge on two spheres are

+ 7 μ C

and

- 5 μ C

respectively. They experience a force

F

. If each of them is given an additional charge of

- 2 μ C,

then the new force of attraction will be

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Achieve CUET (UG) Physics Practice Book>Chapter 1 - Electric Charges and Fields>Exercise>Q 39

If a charge

q

is placed at the centre of the line joining two equal charges

Q

such that the system is in equilibrium, then the value of

q

is,

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Achieve CUET (UG) Physics Practice Book>Chapter 1 - Electric Charges and Fields>Exercise>Q 40

It is required to hold equal charges

q

in equilibrium at the corners of a square. What charge when placed at the center of the square will do this?

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Achieve CUET (UG) Physics Practice Book>Chapter 1 - Electric Charges and Fields>Exercise>Q 41

Three identical charges each

2 μ C

lie at the vertices of a right-angled triangle as shown in the figure. Forces on the charge at

B

due to the charges at

A

and

C

respectively are

F_{1}

and

F_{2}

. The angle between their resultant force and

F_{2}

.

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