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Ask QuestionPosted by Shivansh Shukla 6 years, 1 month ago
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Rahul Jawla 6 years, 1 month ago
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Yogita Ingle 6 years, 1 month ago
Given, Ac = 15V , mu = 60% = 60/100 = 3/5
To find Am = ?
mu = Am/Ac
3/5 = Am/15V
Am = 9V
Posted by Soumya Kushwaha 6 years, 1 month ago
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Priya Dharshini ? 6 years, 1 month ago
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Řøhăň Řąjpůť ✌️✊ 6 years, 1 month ago
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Yogita Ingle 6 years, 1 month ago
The connections are made of thick copper wires to minimize the resistance of connecting wires. Because the connection resistance have not been accounted in the formula, (v Resistance is inversely proportional to cross-sectional area, so thick wire has low resistance).
Survivor Series Passi 6 years, 1 month ago
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Yogita Ingle 6 years, 1 month ago
In reverse bias condition of photodiode, the change in saturation reverse current is directly proportional to the change in the incident light flux or light intensity, which can be measured accurately. It is not so when photodiode is forward biased.
Posted by Shubham Kushwaha 6 years, 1 month ago
- 1 answers
Yogita Ingle 6 years, 1 month ago
Brewster’s law:- Brewster’s law states that at any particular angle of incidence, reflected ray is completely polarized; and the angle between reflected and refracted ray is 900.
- At i = iB; where iB = Brewster’s angle of incidence.
- From Snell’s law :- (sin i/sin r)= μ
- => sin iB /(sin (π/2 -iB))
- =>(sin iB /cos iB)=μ
- tan iB = μ
Posted by Neha Sharma 6 years, 1 month ago
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Yogita Ingle 6 years, 1 month ago
Lenz’s law
- According to Lenz’s law:-The polarity of the induced emf is such that it tends to produce induced current in such a direction that it opposes the change in magnetic flux that produced it.
- The (-) ive sign in given equatione= (-) (dΦ/dt)tells about the direction.
- According to Faraday’s law whenever there is change in the magnetic flux, emf is induced, as aresult there will be induced current.
- According to Lenz’s law the direction of the induced current will be such that it opposes the change in the magnetic flux.
For example:-
- Consider a circuit where the magnetic flux is increasing, as a result flux will change and which induces the emf in the circuit, and as a result current will be induced in the circuit.
- The direction of the induced current will be such that it will oppose the cause which induced it.
- The induced current will be in such a direction that it decreases the magnetic flux.
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Yogita Ingle 6 years, 1 month ago
Classical mechanics deals with the question of how an object moves when it is subjected to various forces, and also with the question of what forces act on an object which is not moving.
The word “classical” indicates that we are not discussing situations in which an object moves with a velocity which is an appreciable fraction of the velocity of light or phenomena on the atomic scale. The description of atomic phenomena requires quantum mechanics, and the description of phenomena at very high velocities requires Einstein’s Theory of Relativity. Both quantum mechanics and relativity were invented in the twentieth century; the laws of classical mechanics were stated by Sir Isaac Newton in 1687. The laws of classical mechanics enable us to calculate the trajectories of bullets and baseballs, planets and space vehicles. Using these laws we can predict the position-versus-time relation for a cylinder rolling down an inclined boat or for an oscillating pendulum and can calculate the tension in the wire when a picture is hanging on a wall.
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Shafaqat Kamal 6 years, 1 month ago
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