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An external resistance R is connected to a cell of internal resistance R.The current in the circuit is maximum when:
(a)R<r (b)R>r (c)R=r (d)R=2r
Give reason. |
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| asked by Akash Ashok (akashskyash007) 7 years ago |
2 |
Guys... when a light ray undergoes refractions its frequency as well as the coour DOES NOT CHANGE..its a misconception that as wavelength changes colour changes. Colour depends upon the frequency...correct me if im wrong |
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| asked by Roshan Geo Roy (yoboyyy) 7 years ago |
1 |
State the principle of a machine. |
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| asked by DrSmita Padmanabhan (sagarvijayakumar) 7 years ago |
1 |
With respect to cathode ray tube give reasons-
1.anode is kept at +ve potential with respect to cathode
2.the screen is coated with fluorescent material
3.a grid is kept in between cathode and anode |
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| asked by Xyz (san_ika) 7 years ago |
1 |
What is Newton's colour disc and what fact did it bring out??this experiment is essential for spectrum someone reply pls |
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| asked by Officer Tenpenny (anurag45) 7 years ago |
1 |
A wire is turned red hot by passing electric current through it. Half of this heated wire is immersed in cold water.What will happen to the amount of heat produced per unit length in the second half? |
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| asked by Utkarsh Sharma (utkarsh3107) 7 years ago |
2 |
How to find the weight of the pulley when effort and load are given? |
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| asked by (heisenberg69) 7 years ago |
1 |
On Concise Pg 163 Example 5: Shouldn't it be 512 Hz as well?? |
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| asked by Ãwe§♥m€ l¥k tHât (aria124) 7 years ago |
4 |
I need another favour due to my 2014 edition book.
Can someone please upload the picture of page 214 - from 2017 edition.
Thanks in advance. |
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| asked by Sdfg Sdfg
(sdfg) 7 years ago |
2 |
Plzzzz give 2 industrial uses of each alpha and beta particles |
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| asked by Shivaanee sharma (shivaanee22) 7 years ago |
1 |
