Class -10 Maths Ch-1 Chapter wised solved Questions By Shivam Sir

                         Class -10th                       

 Mathematics :- 

Chapter -1 { Real Number }

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Chapter -1 { Real Number }

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Complete list of Maths Formula for class 10th

                          Class -10th                       

Subject :- Maths

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This post includes complete list of formulas and table for class 10th Maths....

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Life Process Notes Class -10 CBSE Classes By SHIVAM SIR

 Class -10th                      Life Processes 

Subject :- Science 

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This post includes complete notes of cahpter - Life Process..

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20 pages :- 

                Nutrition In Plants :- 

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Class 10 Part -B Science Important Questions

Class -10th                      Electricity

Part -B 

Subject :- Science 

This post is for the students who are in class 10th and preparing board exam.

This post includes 10 Questions and their solutions. These 10 questions are from the chapter name Electricity.

First solve all Questions by our own and then match with our solution.

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Another 10 Questions and their 

Solution are given below.....

1. Current only flows when a circuit is complete. 

2. Resistance is the property of a conductor.

 A resistor is a electrical component .

3. At constant temp. Resistance depends upon length , Area , Nature of material. 

R= pL/A

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5. Total potential difference across a combination of resistors in series is equal to the sum of potential difference across the individual resistors. 

 V = V1 + V2 + V3 

Let I be the current in the circuit.

 : The current through each resistor is also I.

Let equivalent resistor of resistance R.

Acc. To Ohm's law, 

V = IR

 On applying Ohm's law to the three resistors respectively we have 

V1 = IR1

 V2 = IR2 

V3 = IR3 

And            V = V1+ V2 + V3

                       IR = IR1 + IR2 + IR3

                        R= R1 + R2 + R3

 

Ques - 6.

7. Ohm’s Law:- Law states that when current is passed between two points of a conductor, the current is directly proportional to the potential difference between two points.

 Mathematically , Ohm's law is given by 

I∝V

I= V/R

​  

V=IR

Where v is the potential difference , I is the current and R is the resistance.

8. The amount of charge flowing from A to B in time t is given by,

                    Q = I x t    [∵ I = Q / t]

As per the definition of potential difference,

Work done in carrying unit charge from A to B = V. 

∴   Work done to bring charge Q from A to B is 

                W = V x Q 

                W = V x It 

This amount of energy is expensed in overcoming the resistance offered by the resistor. 

If whole of the energy is dispensed as heat, then the amount of heat produced is given by

           

⇒        H = VIt                        [∵  V = IR]

            H = I²Rt

Joule's law of heating is represented by the above equation.

Joule's law of heating states that the amount of heat produced in a conductor is: 

(i) directly proportional to the square of the current,

(ii) directly proportional to the resistance of the conductor, and

(iii) directly proportional to the time for which the current is passed. 

 9. Some applications based on heating effect of current are:-

1) Electric Fuse :--

2) Electric Iron :-

3) Bulb :-

 

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Class 9th Math Chapter Construction Ex- 11.2

     Class 9th                               Maths

             Chapter - Construction

                       Exercise-11.2

  In this post we provide the solution of Questions from Exercise 11.2 .

Mention any exercise which you want in comment section... 

इस पोस्ट में हमने क्लास 9th के मैथ विषय के कंस्ट्रक्शन पाठ के प्रश्न को हल कराया गया है। 

यदि पोस्ट पसंद आये तो फॉलो बटन जरूर दबाये।

और अधिक विषय के वीडियो एक्सप्लेनशन देखना चाहते हो तो यूट्यूब में फॉलो कर सकते है ।

किसी और एक्सरसाइज के सोलुशन चाहिए तो कमेंट में लिखिए। 

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class 10th physics important questions

Class -10th               Subject:- Physics

Chapter -Electricity         

Part A (1st 10 Questions)

Solution of all questions given below :-

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Solutions :- 

1:-  SI unit for electric charge -coulomb

  No. Of electrons in 1 coulomb of charge - 6.25×10^18

2. SI unit of current is ampere

3. To measure the current use  ammeter 

Which is placed in series .

A series connection is used because objects in series have the same current passing through them.

4. miliampere (1mA=10^-3 A).

 microampere (1uA=10^-6 A).

5. Because of coulomb force .

6. a) Electric cell involves conversion of chemical energy to electrical energy.

b) Electric torch involves conversion of electrical energy into light and heat energy.

7. Electric potential difference between two points in a circuit is the work done to move the charge from one end to the other end of the circuit.

8. The SI unit of electric potential is the volt, which is defined as a joule per coulomb.

9. Voltmeter is used to measure the potential difference between two points in a circuit.it is connected in parallel in the circuit.

Voltmeters do not have infinite resistance, but their resistance must be as high as possible to avoid taking up current.If the meter is connected in series, it will block the flow of current due to its high resistance, in effect killing the circuit. By connecting it in parallel, most of the current will flow through the circuit, with the tiny bit diverted through the meter allowing measurements to be made.

10. It's ohm's law, which states that the current flowing through a conductor is directly proportional to the potential difference applied across its ends, keeping the temperature and other physical condition unchanged

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Class 9th Math Chapter - 11 Construction Ex- 11.1

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Class -9th          Exercise-11.1

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Question No. -1

Question No. -2

Question No. -3

Question No. -4

Question No. -5

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