Physics, asked by Anonymous, 1 year ago

can anyone give me some numericals questions of physics chapter 12 class 10

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Answers

Answered by rohit710
23
Heya........!!!!

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Chapter 12 according to NCERT of 10th class is ' ELECTRICITY' .

Electricity is an easy chapter but it has variety of questions so all you need to do is practise a lot of questions so that you would be familiar with many types of questions .


• Some standard and basic questions of Electricity are :-


Q.1) => An electric lamp uses energy at the rate of 48 W on a 12 V supply . How much charge will pass through the lamp in 2 sec ?


Q.2) => How many electrons in 1 sec constitute a current of 1 A ?


Q.3) => if i is the current through a wire and ' e ' is the charge of electron , then number of electrons in ' t ' seconds will be ?


Q.4) => Two wires of equal lenght are first connected in series and then in parallel with a battery . The ratio of heat produced in 2 cases will be ?


Q.5) => Three resistance each of 8 ohm are connected to a triangle . The resistance between any two terminal will be ?


Q.6) => Two particle having charge q1 and a2 when kept at a distance ' d' the force is F when the distance is reduced to half then the Force will be ?


Q.7) => An electric iron consumes energy at rate of 420w when heating is at maximum rate and 180 w when heating is at minimum. The voltage is 220V .What is the current and resistant in each case ?


Q.8) => The work done in carrying a charge of 2 micro C from point A to B is 6 × 10^-2 J . The potential diffrence between these two points will be ?


Q.9) => The equivalent resistance of r1 and r2 when connected in series is R1 and when connected in parallel is R2 . Then the ratio R1 / R2 is ?


Q.10 ) => A wire is stretched to decrease the radius by 0.1 % , Calculate the percentage change in it's resistance .




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Answered by Samanwita
6
HEYA FRIEND, (^^)

HERE IS YOUR ANSWER,

According to the ICSE syllabus, the 12th chapter is "Radioactivity".

THE MATHEMATICAL QUESTIONS REGARDING THIS CHAPTER ARE-
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1. Calculate the amount of energy released in MeV due to a loss of mass of 1 kg.

2. if in nuclear fusion of a piece of uranium, 0.5 g mass is lost, how much energy in kWh is obtained?

3. In a nuclear fusion reaction, the loss in mass is 0.3% . How much energy is released in the fusion of 1 kg mass?

4. Calculate the loss in mass equivalent to the energy 1.0×(10 to the power 6) kWh.
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HOPE IT HELPS YOU (^^)
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