Example 12.5 | Class 10 Science Chapter 12. Electricity | NCERT

Class 10 Science
Chapter 12. Electricity

► Full Chapter Playlist.

• 12.1 Electric Current and Circuit
• Example 12.1
• 12.2 Electric Potential and Potential Difference

• Example 12.2
• 12.3 Circuit Diagram
• 12.4 Ohm's Law
• 12.5 Factors on Which the Resistance of a Conductor Depends
• Example 12.3
• Example 12.4
• Example 12.5
• 12.6 Resistance of a system of resistors
• Example 12.7
• Example 12.8
• Example 12.9
• 12.7 Heating Effect of Electric Current

• Example 12.10
• Example 12.11
• 12.8 Electrical Power

• Example 12.12
• Example 12.13

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Example 12.5
Resistance of a metal wire of length 1 m is 26 ohm at 20°C. If the diameter of the wire is 0.3 mm, what will be the resistivity of the metal at that temperature? Using Table 12.2, predict the material of the wire.

[elisiqn]

Thanks sir for showing small calculations my teacher directly shows the method and final answer saying that you can calculate this at home🥺

[abdoulrahaman]

Never seen such a clear explanation generally people used to write the steps and directly put answer finally an end to it.

[the.ryannn]

Thnx sir ye chapter mene pura self study kia h aur ab me numerical bhi kr lia bas ye nhi aa rha tha thnx sir

[shahzad]

Video quality and other things in the video are top class teacher and his teaching is also very nice

[SciProf.]

I was confused in this question
how 'A = πr²' becomes 'A = πd²'
And how 4 from non-existence comes in denominator with l (Length of wire)

Because of this i ended up here but due to your Proper Step by Step explanation, I got it... Thanks!
You deserve a like and a subscriber 👍👌 May God Bless You, Sir

[artandcraftideas]

Sirrr i saw ur vedio for 1st time and the way of explanation or i would say detailed explanation isss veryyy nice and u told each and every step in soooo detail thnks sir😊

[manishagohel]

Why you take valve of pie 3.14 ? We can take also 22/7 is there any difference in answer😢

[amritachetri]

You are great 👍🏻 sir, tomorrow is my hslc examination and today my doubts are cleared

[White_devil]

Great explanation sir i encourage you to make more videos like this and also solve maths problem

[kyubatau]

Thank you sir you are great you help me a lot in physics thank you 🤗🤗🙏

[SimranSingh-mmjq]

Thank you sir for clearing my doubt of this question.
Literally you teach too good.

[Alv]

The question is so tricky but you teach it soo better ❤

[chaturthi]

Really such an understanding explanation. Tq sir ♥️

[status_guruji]

Thank you Sir
I was trying to solve this problem since two days.
Once again Thank you

[saaz]

Bohut aacha laga aapka detailed teaching method.Keep it up...

[DREADsnaps]

Tommorow is my exam...Thank You Very Much Sir...You are a Real Teacher💟

[Joshimahi]

One doubt 👇
Thanku so much sir !! you are the only one in whole YouTube who shows full calculation..
In school also teachers directly jump on answer...!
Greetings for you future👍👍..
One doubt : can we also leave our answer on 18369 × 10^-10 ohm metre

[A-kd]

Best solution video I found on YouTube is this

[ArcMans_Innovation]

Superb explanation sir! But I have a doubt
Can we convert both length and diameter into cm?
Pls reply

[Ydvanimeworld]

Sir 369 ko apne 4 kese likh diye sir please solution 😢