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If each diode in figure has a forward bias resistance of 25 Ω and infinite resistance in reverse bias, what will be the values of the currents I1, I2, I3and I4?
If each diode in figure has a forward bias resistance of 25 Ω and infinite resistance in reverse bias, what will be the values of the currents I1, I2, I3and I4?
This is a Long Answer Type Questions as classified in NCERT Exemplar
forward biased resistance = 25ohm
Reverse biased resistance = infinity
As CD branch is reverse biased having infinite resistance.
So I3= 0
Resistance in branch AB= 25+125= 150 ohm (R1)
Resistance in branch EF= 25+125= 150 ohm (R2)
They bo
Upvote 
<p><strong>Q.6. Let <span class="mathml ole"> <math> <mrow> <mi> A </mi> <mo> = </mo> <mrow> <mo> [ </mo> <mrow> <mo> − </mo> <mn> 1 </mn> <mo> , </mo> <mn> 1 </mn> </mrow> <mo> ] </mo> </mrow> </mrow> </math></span> , Then, discuss whether the following functions defined on <span class="mathml ole"> <math> <mrow> <mi> A </mi> </mrow> </math></span> are one-one, onto, or bijective:</strong></p>
<p>(i) <span class="mathml ole"> <math> <mrow> <mi> f </mi> <mrow> <mo> ( </mo> <mrow> <mi> x </mi> </mrow> <mo> ) </mo> </mrow> <mo> = </mo> <mfrac> <mrow> <mi> x </mi> </mrow> <mrow> <mn> 2 </mn> </mrow> </mfrac> </mrow> </math></span></p>
<p>(ii) <span class="mathml ole"> <math> <mrow> <mi> g </mi> <mrow> <mo> ( </mo> <mrow> <mi> x </mi> </mrow> <mo> ) </mo> </mrow> <mo> = </mo> <mrow> <mo> | </mo> <mrow> <mi> x </mi> </mrow> <mo> | </mo> </mrow> </mrow> </math></span></p>
<p>(iii) <span class="mathml ole"> <math> <mrow> <mi> h </mi> <mrow> <mo> ( </mo> <mrow> <mi> x </mi> </mrow> <mo> ) </mo> </mrow> <mo> = </mo> <mi> x </mi> <mrow> <mo> | </mo> <mrow> <mi> x </mi> </mrow> <mo> | </mo> </mrow> </mrow> </math></span></p>
<p>(iv) <span class="mathml ole"> <math> <mrow> <mi> k </mi> <mrow> <mo> ( </mo> <mrow> <mi> x </mi> </mrow> <mo> ) </mo> </mrow> <mo> = </mo> <msup> <mrow> <mi> x </mi> </mrow> <mrow> <mn> 2 </mn> </mrow> </msup> </mrow> </math></span> .</p>
<p><strong>Q.6. Let <span class="mathml ole"> <math> <mrow> <mi> A </mi> <mo> = </mo> <mrow> <mo> [ </mo> <mrow> <mo> − </mo> <mn> 1 </mn> <mo> , </mo> <mn> 1 </mn> </mrow> <mo> ] </mo> </mrow> </mrow> </math></span> , Then, discuss whether the following functions defined on <span class="mathml ole"> <math> <mrow> <mi> A </mi> </mrow> </math></span> are one-one, onto, or bijective:</strong></p>
<p>(i) <span class="mathml ole"> <math> <mrow> <mi> f </mi> <mrow> <mo> ( </mo> <mrow> <mi> x </mi> </mrow> <mo> ) </mo> </mrow> <mo> = </mo> <mfrac> <mrow> <mi> x </mi> </mrow> <mrow> <mn> 2 </mn> </mrow> </mfrac> </mrow> </math></span></p>
<p>(ii) <span class="mathml ole"> <math> <mrow> <mi> g </mi> <mrow> <mo> ( </mo> <mrow> <mi> x </mi> </mrow> <mo> ) </mo> </mrow> <mo> = </mo> <mrow> <mo> | </mo> <mrow> <mi> x </mi> </mrow> <mo> | </mo> </mrow> </mrow> </math></span></p>
<p>(iii) <span class="mathml ole"> <math> <mrow> <mi> h </mi> <mrow> <mo> ( </mo> <mrow> <mi> x </mi> </mrow> <mo> ) </mo> </mrow> <mo> = </mo> <mi> x </mi> <mrow> <mo> | </mo> <mrow> <mi> x </mi> </mrow> <mo> | </mo> </mrow> </mrow> </math></span></p>
<p>(iv) <span class="mathml ole"> <math> <mrow> <mi> k </mi> <mrow> <mo> ( </mo> <mrow> <mi> x </mi> </mrow> <mo> ) </mo> </mrow> <mo> = </mo> <msup> <mrow> <mi> x </mi> </mrow> <mrow> <mn> 2 </mn> </mrow> </msup> </mrow> </math></span> .</p>
What are integrated circuits (ICs), and what are their advantages?
What are integrated circuits (ICs), and what are their advantages?
As per the NCERT Textbooks
“An integrated Chip consists of many passive and active components fabricated on a single chip of silicon. these ICs are compact, low-cost, and highly reliable. They consume less power and have high speed.”
These ICs are used in majority of our daily use electronics and
Upvote Why is a p-type semiconductor electrically neutral despite having more holes than electrons?
Why is a p-type semiconductor electrically neutral despite having more holes than electrons?
A p-type semiconductor is electrically neutral despite having more holes, because the number of positively charged holes is exactly balanced/equal by the number of negatively charged acceptor ions introduced during doping. so practically untill any volatage is applied the semiconductor remains
Upvote As per NCERT Textbboks"If forward current is too large, it can produce large heating and damage the junction. So, a resistor is used in series with the diode to limit the current in the circuit.”
It means when a semiconductor diode is connected to a source under high current it causes excess heat due
Upvote