PHYSICS PART-1 TEXTBOOK FOR CLASS XII>Chapter 1 - Electric Charges and Fields>EXERCISES>Q 1.14

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Figure shows tracks of three charged particles in a uniform electrostatic field. Give the signs of the three charges. Which particle has the highest charge to mass ratio?

Important Questions on Electric Charges and Fields

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PHYSICS PART-1 TEXTBOOK FOR CLASS XII>Chapter 1 - Electric Charges and Fields>EXERCISES>Q 1.15

Consider a uniform electric field

\vec{E} = 3 \times 10^{3} \hat{i} N / C .

What is the flux of this field through a square of

10 c m

on a side whose plane is parallel to the

y z

plane?

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PHYSICS PART-1 TEXTBOOK FOR CLASS XII>Chapter 1 - Electric Charges and Fields>EXERCISES>Q 1.15

Consider a uniform electric field

E = 3 \times 10^{3} \hat{i} N / C .

What is the flux through the square of side

10 cm

if the normal to its plane makes a

60^{o}

angle with the x-axis?

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PHYSICS PART-1 TEXTBOOK FOR CLASS XII>Chapter 1 - Electric Charges and Fields>EXERCISES>Q 1.16

Consider a uniform electric field

E = 3 \times 10^{3} \hat{i} N / C

. What is the net flux of this uniform electric field through a cube of side

20 cm

oriented so that its faces are parallel to the coordinate planes?

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PHYSICS PART-1 TEXTBOOK FOR CLASS XII>Chapter 1 - Electric Charges and Fields>EXERCISES>Q 1.17

Careful measurement of the electric field at the surface of a black box indicates that the net outward flux through the surface of the box is

8.0 \times 10^{3} {Nm}^{2} C^{- 1}

. What is the net charge inside the box? Take,

\in_{0} = 8.854 \times 10^{- 12} C^{2} m^{- 2} N^{- 1}

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PHYSICS PART-1 TEXTBOOK FOR CLASS XII>Chapter 1 - Electric Charges and Fields>EXERCISES>Q 1.17

Careful measurement of the electric field at the surface of a black box indicates that the net outward flux through the surface of the box is

8.0 \times 10^{3} {Nm}^{2} C

If the net outward flux through the surface of the box were zero, could you conclude that there were no charges inside the box? Why or Why not?

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PHYSICS PART-1 TEXTBOOK FOR CLASS XII>Chapter 1 - Electric Charges and Fields>EXERCISES>Q 1.18

A point charge

+ 10 μC

is a distance

5 cm

directly above the centre of a square of side

10 cm

, as shown in the figure. What is the magnitude of the electric flux through the square? (Take,

\in_{0} = 8.854 \times 10^{- 12} C

)

Question Image

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PHYSICS PART-1 TEXTBOOK FOR CLASS XII>Chapter 1 - Electric Charges and Fields>EXERCISES>Q 1.19

A point charge of

2.0 μC

is at the center of a cubic Gaussian surface

9.0 cm

on edge. What is the net electric flux through the surface? (

\in_{0} = 8.854 \times 10^{- 12}

)

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PHYSICS PART-1 TEXTBOOK FOR CLASS XII>Chapter 1 - Electric Charges and Fields>EXERCISES>Q 1.2

A point charge causes an electric flux of

- 1.0 \times 10^{3} \frac{{Nm}^{2}}{C}

to pass through a spherical Gaussian surface of

10 cm

radius centered on the charge.
If the radius of the Gaussian surface were doubled, how much flux would pass through the surface?