A pit 4 m long 4 m wide and 2.8 m deep is dug from a corner of a rectangular ground with dimensions 20 rn by 12 m. If the earth taken out is spread evenly over the remaining area of the ground, find the rise in the level of the ground. 

 

 A cylindrical well is of height 3.5 feet above the ground, the level of water is 7 feet below the ground level. If the volume of water in the well is half the volume of the capacity of the well, find the total height of the well. 

 

 EARTHING NEUTRAL DIFFERENCE YOUTUBE VIDEOS LIST GOOD

 

https://www.youtube.com/playlist?list=PL2ub1_oKCn7oTxFg1EvQLpm5SBziGOFz9
Electromagnetic induction | Class 12 | Physics | Khan Academy

Magnetism & matter | Class 12 | Physics | Khan Academy
https://www.youtube.com/playlist?list=PL2ub1_oKCn7oX-QME7nMiZTh0twcS25NL

https://www.youtube.com/watch?v=wbJNVweSeGI

Why phase comes in neutral wire in Hindi| Practically Sikhe |

https://www.youtube.com/watch?v=UO_IikRQuFs
What is Phase Neutral and earthing in Hindi | Practically shikhe


https://www.youtube.com/watch?v=dH3kpyu6nXo
Why there is Voltage Between Earth & Neutral | क्यों पृथ्वी और तटस्थ के बीच वोल्टेज

https://www.youtube.com/watch?v=ynUkx1s6Jdg
न्यूट्रल और अर्थ तार क्या है I Earth and Neutral Difference I Earthing, Groundऔर Neutral wireक्या है - 

verrry guddd for earthing


https://www.youtube.com/watch?v=MTFVmu6DExE
Neutral और Earth मे क्या अंतर होता है | Difference Between NEUTRAL and EARTH | neutral vs earth wire


https://www.youtube.com/watch?v=as3weOVo96E
Difference between Neutral and Earthing "अर्थ और न्यूट्रल में अंतर"



https://www.youtube.com/watch?v=WdQt3nPWBDQ
Difference between Neutral and Earth


https://www.youtube.com/watch?v=M7pSAAJf_1U
what is difference between neutral grounding and earthing | neutral vs ground | neutral vs earth


https://www.youtube.com/watch?v=lI59y1h3MxU
Why we do not join ground wires and neutral wires together downstream of the service equipment.

https://www.youtube.com/watch?v=NsnOUgGZId4
Difference Between AC and DC current in Hindi | एसी और डीसी करंट में क्या अंतर होता है | ac & dc



https://www.youtube.com/watch?v=n5NP5_oHbJA
Why Hole on the Plug? - electrical interview question


https://www.youtube.com/watch?v=GO9RUA8eEFQ
Why is there black cylinder on charger?


https://www.youtube.com/watch?v=kDGho9sNUos
How Induction Stove Works?? - electrical interview question


https://www.youtube.com/watch?v=S-gttPkhd0I
Resistance and Impedance Difference | रेजिस्टेंस और इम्पेडंस में क्या अंतर होता है?



https://www.youtube.com/watch?v=YyzW-5oBxns
where does neutral wire comes from | हम सभी को न्यूट्रल वायर कहाँ से मिलता है?



https://www.youtube.com/watch?v=TuTYdYu_qhc
How to use multimeter in hindi | Multimeter tutorial | multimeter kaise chalaye



https://www.youtube.com/watch?v=84ZQ1nPhYgU
Resistance reactance and Impedance difference | difference between resistance reactance in hindi


https://www.youtube.com/watch?v=_cz3DWPrI5A
transformer neutral earthing hindi | why transformer neutral is grounded |transformer earthing hindi



https://www.youtube.com/watch?v=zz78dLS4lDY
Why cuts/splits on the plug? - electrical interview question
 

 A metal cube of side 12 cm is melted and a cuboid of base 18 cm by 16 cm is formed. Find the height of the cuboid.

 Find the number of bricks, each of dimensions 12 cm x 5 cm x 7 cm, required to construct a wall 6 m long, 2.8 m high and 15 cm thick.