This is the explanation i actually needed. But i want you to extend it a little bit, hopefully you will clear my doubt(please check my attachment). I will appreciate further reply from you :)
But why is it true for radians only? I solved on my calculator and this is what i saw :
Tan (0.12) = 0.12 (where 0.12 is radians)
But when x is in degrees
Tan(0.12) = 0.00209
What is happening here?please explain.
Hi! In one of my textbook i saw the relation tan(x) = x where x is very small value and expressed in radians. I want to know why its true and how it actually works. I would appreciate someone's help :smile:
I have a picture below please have a look at it. The guy is using two conducting rods placed parallel to each other and placed below it are magnets. When battey is connected to rods and a conductor is placed over them it starts to move.That works according to flemmings left hand rule. I was...
Homework Statement
This is a silly question,but i have a problem.How do we solve derivative of -x using first principle of derivative. I know that if derivative of x w.r.t x is 1 then ofcourse that of -x should be -1. Also it can be solved by product rule taking derivative of -1.x .
Homework...
Homework Statement
How do we find the derivative of function:
y= √[(1-sinx)/(1+sinx)]
This is the exercise problem from my textbook. I have not covered chain rule yet. So please you basic derivative rules to solve it.
Homework Equations
Here is the answer of derivative given in my textbook...
So when we have a negative feedback there is a very little difference between the voltages at inverting and non inverting inputs.and since op amps in practical have some finite gain the output will be amplified without rising up extremely high. Am i right?
Homework Statement
I am doing a little bit of research about op amps. What i know so far from the book it that op amp have a very large open loop gain. To reduce the gain to desired amount we need resistor which connect output to invering terminal(negative feedback).
Homework...
Hi !
Sorry, but one more question is overwhelming me right now.
Does the magnitude of resultant flux not get affected when we move -√3/2 by 180°.
Is it okay to do so ?
Thanks so much i really got this concept clear today. I realized that what i didn't know is that vectors cant have negative magnitude now if i keep this in mind my concept about resultant flux is clearly understood. :)
Im so thankful to you :)
Homework Statement
I have some attachements below from my textbook. According to it the value of resultant flux is constant in magnitude and 1.5 times the maximum value of flux.
But i have a doubt regarding how it is proved.
The magnetic flux waveforms are 120° apart from each other and at...
I am studying induction motors and i have equation for instantaneous value of current flowing in each phases.(please check to image below).I can see that its it the form Im.cosωt
But isnt it supposed to be Im.sinωt ?because thats how we find all instantaneous parameters like voltage and...
Thread moved by mentor
why is 'e' so important number. e^x is said to be natural language of growth. Why isnt 2^x a 100% growth.Can anyone explain me the difference between both of these and also bit more about number e which known as famous constant.please explain clearly. I will appreciate it.