Wednesday, 13 August 2014

Chapter 12. Electricity | CBSE Class X (10th) Science | Solved Exercises

Multiple Choice Questions - MCQs : Chapter 12. Electricity | CBSE Class 10th Science

Question 1. What happens to the resistance of circuit if current through it is doubled ?
(a) Resistance is doubled
(b) Resistance becomes half
(c) Resistance remains same
(d) None

Answer. (c) Resistance remains same

Question 2. The work done in moving a unit positive charge, across two points in an electric circuit is measure of _____ ?
(a) Current
(b) Potential Difference
(c) Resistance
(d) Power

Chapter 3 Drainage | Geography | CBSE Class 9th | Solved Exercises

Question 1. Choose the right answer from the four alternatives given below:

(i) Which one of the following describes the drainage patterns resembling the branches of a tree?

(a) Radial
(b) Dendritic
(c) Centrifugal
(d) Trellis

Answer : (b) Dendritic

Chapter 13. WHY DO WE FALL ILL | CBSE Class 9th Science | Solved Exercises

Intext Questions | Page 178

Question 1. State any two conditions essential for good health.

Answer : A good health is ideally a state of well-being physically, mentally and socially . The two conditions essential for good health are:
  1. All community members must have access to basic and better health care facilities supported by the qualified medical professionals.
  2. There should be good economic opportunities for all. Community members should be socially well connected for any support or sharing of resources and should have high level of cleanliness and hygiene at personal or community level