Tiwari Academy Discussion

Darahaas Das

Asked: October 30, 2020In: Class 10

Explain the underlying principle and working of an electric generator by drawing a labelled diagram. What is the function of brushes?

NCERT Solution for Class 10 Science Chapter 13 Magnetic Effects of Electric Current NCERT Books for Session 2022-2023 CBSE Board and UP Board Exercises Questions Page No-241 Questions No-16

Darahaas Das

Asked: October 30, 2020In: Class 10

When does an electric short circuit occur?

NCERT Solution for Class 10 Science Chapter 13 Magnetic Effects of Electric Current NCERT Books for Session 2022-2023 CBSE Board and UP Board Exercises Questions Page No-241 Questions No-17

Darahaas Das

Asked: October 30, 2020In: Class 10

What is the function of an earth wire? Why is it necessary to earth metallic appliances?

NCERT Solution for Class 10 Science Chapter 13 Magnetic Effects of Electric Current NCERT Books for Session 2022-2023 CBSE Board and UP Board Exercises Questions Page No-241 Questions No-18

Rohan Duaby

Asked: October 30, 2020In: Class 10

An oil funnel made of tin sheet consists of a 10 cm long cylindrical portion attached to a frustum of a cone. If the total height is 22 cm, diameter of the cylindrical portion is 8 cm and the diameter of the top of the funnel is 18 cm, find the area of the tin sheet required to make the funnel.

NCERT Solutions for Class 10 Maths Chapter 13 Important NCERT Questions Surface areas and Volumes, NCERT Books for Session 2022-2023 CBSE Board and UP Board Others state Board EXERCISE 13.5 Page No:258 Questions No:5

Bhagyasri Singh

Asked: October 29, 2020In: Class 10

2 cubes each of volume 64 cm3 are joined end to end. Find the surface area of the resulting cuboid.

NCERT Solutions for Class 10 Maths Chapter 13 Important NCERT Questions Surface ar eas and Volumes, NCERT Books for Session 2022-2023 CBSE Board and UP Board Others state Board EXERCISE 13.1 Page No:244 Questions No:1

Bhagyasri Singh

Asked: October 29, 2020In: Class 10

A vessel is in the form of a hollow hemisphere mounted by a hollow cylinder. The diameter of the hemisphere is 14 cm and the total height of the vessel is 13 cm. Find the inner surface area of the vessel.

NCERT Solutions for Class 10 Maths Chapter 13 Important NCERT Questions Surface ar eas and Volumes, NCERT Books for Session 2022-2023 CBSE Board and UP Board Others state Board EXERCISE 13.1 Page No:244 Questions No:2

Bhagyasri Singh

Asked: October 29, 2020In: Class 10

A toy is in the form of a cone of radius 3.5 cm mounted on a hemisphere of same radius. The total height of the toy is 15.5 cm. Find the total surface area of the toy.

NCERT Solutions for Class 10 Maths Chapter 13 Important NCERT Questions Surface ar eas and Volumes, NCERT Books for Session 2022-2023 CBSE Board and UP Board Others state Board EXERCISE 13.1 Page No:244 Questions No:3

Bhagyasri Singh

Asked: October 29, 2020In: Class 10

A cubical block of side 7 cm is surmounted by a hemisphere. What is the greatest diameter the hemisphere can have? Find the surface area of the solid.

NCERT Solutions for Class 10 Maths Chapter 13 Important NCERT Questions Surface areas and Volumes, NCERT Books for Session 2022-2023 CBSE Board and UP Board Others state Board EXERCISE 13.1 Page No:244 Questions No:4

Bhagyasri Singh

Asked: October 29, 2020In: Class 10

A hemispherical depression is cut out from one face of a cubical wooden block such that the diameter l of the hemisphere is equal to the edge of the cube. Determine the surface area of the remaining solid.

NCERT Solutions for Class 10 Maths Chapter 13 Important NCERT Questions Surface areas and Volumes, NCERT Books for Session 2022-2023 CBSE Board and UP Board Others state Board EXERCISE 13.1 Page No:244 Questions No:5

Bhagyasri Singh

Asked: October 29, 2020In: Class 10

A tent is in the shape of a cylinder surmounted by a conical top. If the height and diameter of the cylindrical part are 2.1 m and 4 m respectively, and the slant height of the top is 2.8 m, find the area of the canvas used for making the tent. Also, find the cost of the canvas of the tent at the rate of ` 500 per m2. (Note that the base of the tent will not be covered with canvas.)

NCERT Solutions for Class 10 Maths Chapter 13 Important NCERT Questions Surface areas and Volumes, NCERT Books for Session 2022-2023 CBSE Board and UP Board Others state Board EXERCISE 13.1 Page No:245 Questions No:7

Explain the underlying principle and working of an electric generator by drawing a labelled diagram. What is the function of brushes?

When does an electric short circuit occur?

What is the function of an earth wire? Why is it necessary to earth metallic appliances?

An oil funnel made of tin sheet consists of a 10 cm long cylindrical portion attached to a frustum of a cone. If the total height is 22 cm, diameter of the cylindrical portion is 8 cm and the diameter of the top of the funnel is 18 cm, find the area of the tin sheet required to make the funnel.

2 cubes each of volume 64 cm3 are joined end to end. Find the surface area of the resulting cuboid.

A vessel is in the form of a hollow hemisphere mounted by a hollow cylinder. The diameter of the hemisphere is 14 cm and the total height of the vessel is 13 cm. Find the inner surface area of the vessel.

A toy is in the form of a cone of radius 3.5 cm mounted on a hemisphere of same radius. The total height of the toy is 15.5 cm. Find the total surface area of the toy.

A cubical block of side 7 cm is surmounted by a hemisphere. What is the greatest diameter the hemisphere can have? Find the surface area of the solid.

A hemispherical depression is cut out from one face of a cubical wooden block such that the diameter l of the hemisphere is equal to the edge of the cube. Determine the surface area of the remaining solid.

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