26 - Current Electricity Questions Answers

two charged particles of mass m and 2m have charges +2q and +q respectively. they are kept in a uniform electric field far away from each other and then allowed to move for some time t . find the ratio of their kinetic energy

 

Asked By: SHYAMAL 1 year ago
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Asked By: SHYAMAL 1 year ago
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Asked By: SHYAMAL 1 year ago
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This question has Statement-I and Statement-II. Of the four choices given after the statements, choose the one that best describes the statements. Statement 1: Higher the range, greater is the resistance of ammeter. Statement 2: To increase range of ammeter, additional shunt needs to be used across it.
Asked By: SUJET SINGH 2 year ago
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Asked By: MD ASIF 2 year ago
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WHAT IS CHARGE ACTUALLY? IS IT ELECTRON, PROTON OR SOMETHING ELSE?

Asked By: ANUJ KUMAR YADAV 3 year ago
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A house is served by 220V supply  line.In a circuit protected by a fuse marked " 9 ampere" the maximum no. of (60 W,220W) bulbs that can safely connected in parallel is ?????

Asked By: PRADEEP KUMAR 3 year ago
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Sir i have score 67% in HSC class 12  and 256 in bitsat (2014)..i have took a drop do i have any chances for jee advance very tensed at this moment please help

Asked By: OM 4 year ago
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A resistor of resistance R is connected to an ideal battery. If the value of R is decreased, then the power dissipated in the resistor will .........???

Asked By: HARSH 4 year ago
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if an area of isoscale right angle triangle(made of uniform wire of unit resistivity) is 8 unit. a battery of emf 10 unit is connected with across the longest branch then the current drawn from battery is approx                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     ans is  3A                                                                                                   

Asked By: AKANKSHA SINHA 5 year ago
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Answer Strategies and trick by Manish sir (it will help you to solve it by yourself)

area = l2/2 = 8 so l = 4

ρ = 1 

so  resistance of the 3 legs of the triangle = 4/A, 4/A, 4√2/A

battery is connected across the longest branch so eq. resistance = 4/A+4/A+4√2/A = 13.6/A

i think area of cross section will be given then calculate current

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