Ekani

Asked: March 6, 2021In: Class 10 Social Science

Do you agree with the view that primary, secondary and tertiary sectors are dependent on each other?

Important Question, Class 10, CBSE SOCIAL SCIENCE, CH :2, Sectors of the Indian Economy NCERT Solutions for Class 10 Social Science Chapter 2 Economics CBSE Class 10 Economics 2022-2023 Important Questions

Amit123

Asked: March 6, 2021In: Class 10 Social Science

Important Questions for Class 10 Economics for 2022-2023 Exams

Class 10 Economics Important questions for Board exams,

Irika

Asked: February 26, 2021In: Class 6 Maths

To stitch a shirt 2 m 15 cm cloth is needed. Out of 40 m cloth, how many shirts can be stitched and how much cloth will remain?

NCERT Solutions for Class 6 Maths Chapter 1 Questions No: 1 Important NCERT Questions Knowing Our Numbers Chapter 1 Exercise 1.2 NCERT Books for Session 2022-2023 CBSE Board Questions No: 1

Ashok0210

Asked: February 24, 2021In: Class 12 Physics

Answer the following questions: (a) Explain qualitatively on the basis of domain picture the irreversibility in the magnetisation curve of a ferromagnet. (b) The hysteresis loop of a soft iron piece has a much smaller area than that of a carbon steel piece. If the material is to go through repeated cycles of magnetisation, which piece will dissipate greater heat energy? (c) ‘A system displaying a hysteresis loop such as a ferromagnet, is a device for storing memory?’ Explain the meaning of this statement. (d) What kind of ferromagnetic material is used for coating magnetic tapes in a cassette player, or for building ‘memory stores’ in a modern computer? (e) A certain region of space is to be shielded from magnetic fields. Suggest a method.

Class 12 Physics CBSE and UP Board Magnetism and Matter Chapter-5 Exercise 5.17 Additional Exercise NCERT Solutions for Class 12 Physics Chapter 5 Question 17

Ashok0210

Asked: February 23, 2021In: Class 12 Physics

(a) Given n resistors each of resistance R, how will you combine them to get the (i) maximum (ii) minimum effective resistance? What is the ratio of the maximum to minimum resistance? (b) Given the resistances of 1 Ω, 2 Ω, 3 Ω, how will be combine them to get an equivalent resistance of (i) (11/3) Ω (ii) (11/5) Ω, (iii) 6 Ω, (iv) (6/11) Ω? (c) Determine the equivalent resistance of networks shown in Fig. 3.31.

Class 12 Physics CBSE and UP Board Current Electricity Additional Exercise Chapter-3 Exercise 3.20 NCERT Solutions Class 12 Physics Chapter 3 Question 20

Ashok0210

Asked: February 23, 2021In: Class 12 Physics

The earth’s surface has a negative surface charge density of 10⁻⁹ C m⁻². The potential difference of 400 kV between the top of the atmosphere and the surface results (due to the low conductivity of the lower atmosphere) in a current of only 1800 A over the entire globe. If there were no mechanism of sustaining atmospheric electric field, how much time (roughly) would be required to neutralise the earth’s surface? (This never happens in practice because there is a mechanism to replenish electric charges, namely the continual thunderstorms and lightning in different parts of the globe). (Radius of earth = 6.37 × 10⁶ m.)

Class 12 Physics CBSE and UP Board Current Electricity Additional Exercise Chapter-3 Exercise 3.14 NCERT Solutions Class 12 Physics Chapter 3 Question 14

Ashok0210

Asked: February 21, 2021In: Class 12 Physics

Determine the current in each branch of the network shown in Fig. 3.30:

Class 12 Physics CBSE and UP Board Current Electricity Exercise 3 Chapter-3 Exercise 3.9 NCERT Solutions for Class 12 Physics Chapter 3

Ashok0210

Asked: February 21, 2021In: Class 12 Physics

(a) In a metre bridge [Fig. 3.27], the balance point is found to be at 39.5 cm from the end A, when the resistor Y is of 12.5 Ω. Determine the resistance of X. Why are the connections between resistors in a Wheatstone or meter bridge made of thick copper strips? (b) Determine the balance point of the bridge above if X and Y are interchanged. (c) What happens if the galvanometer and cell are interchanged at the balance point of the bridge? Would the galvanometer show any current?

Class 12 Physics CBSE and UP Board Current Electricity Exercise 3 Chapter-3 Exercise 3.10

Tejas Rana

Asked: November 3, 2020In: Class 9

In any triangle ABC, if the angle bisector of ∠A and perpendicular bisector of BC intersect, prove that they intersect on the circumcircle of the triangle ABC.

NCERT Solutions for Class 9 Maths Chapter 10 Important NCERT Questions Circles NCERT Books for Session 2022-2023 CBSE Board, UP Board and Other state Boards EXERCISE 10.6 Page No:186 Questions No:10

Urvi Goswami

Asked: November 3, 2020In: Class 9

Check which of the following are solutions of the equation x – 2y = 4 and which are not: ( √2, 4√2)

NCERT Solutions for Class 9 Maths Chapter 4 Important NCERT Questions Linear equations in two variables NCERT Books for Session 2022-2023 CBSE Board and UP Board Others state Board EXERCISE 4.2 Page No:70 Questions No: 3 Part:4

Ekani

To stitch a shirt 2 m 15 cm cloth is needed. Out of 40 m cloth, how many shirts can be stitched and how much cloth will remain?

Determine the current in each branch of the network shown in Fig. 3.30:

In any triangle ABC, if the angle bisector of ∠A and perpendicular bisector of BC intersect, prove that they intersect on the circumcircle of the triangle ABC.

Check which of the following are solutions of the equation x – 2y = 4 and which are not: ( √2, 4√2)

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