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Two resistances have lengths in the ratio 1:4 and radius 1:2,specific resistances in ratio 3:1. compare their resistances.Solution)Given lengths l1=1 l2=4Given radius r1=1 r2=2 Given specific resistances Ρ(rho)1=3 Ρ2= 1we know the R=Ρl/A R1/R2=3/1.
a catapult can hurl a rock straight up in the air 45 m high. What is the maximun range of the catapult?
Derive second law of thermodynamics According the thermodynamics II Law, *efficiency never be unity or never exceed unity. *Coefficient of performance never be infinite
What is Fresnel explanation of optical activity
what happens to a conical pendulum when the bob splits into two parts such that one part remains attached to the string?
What do you mean by Normal shift? How can you calculate total internal reflection? Mention an application of total internal reflection.
An experiment with two spikes Use the drill for a rotation machine as in the above experiment. Unite two spikes by attaching the point end of every to the end of a 15 cm length
M is the magnetic moment of bar magnet and T is time period of oscillation. If we make M as M/4 then what will be the time period
How do you separate Hydrogen and Oxygen gases in industrial electrolysis of water process? In electrolysis, oxygen and hydrogen gas are formed at dissimilar electrodes (oxygen
Potential barrier One either side of the junction, the region ‘D' becomes free from mobile charge carriers. That is on n-type side of D, no free electrons exist and on p-type s
The Centralia power plant emits SO 2 at the rate of 150 g/s. It has an effective stack height of 50 m. Surface winds at 10 m are steady at 2.5 m/s and it is a fall afternoon. a
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