00:01
According to this question, as the water level rises, the position of flow changes and so does the reading of the voltmeter, that is v.
00:11
So, that the resistance between the terminal a to b vary from, varies from 0 to 2 kilo ohm.
00:29
As water level rises from, rise in water level is given to be equal to 0 to 10 millimeters.
00:49
Corresponding to the voltage should, the corresponding voltage should vary is equal to from 1 to 10 volt.
01:07
Here, i is equal to 10, 10 volt divided by the resistance that is 2 kilo ohm which is equal to, so i will come out to be equal to 5 milliampere.
01:31
The current is 5 milliampere.
01:36
Vab is equals to r multiplied by 5 milliampere which is equal to 0 .005 multiplied by r volts.
02:03
R is directly proportional to h.
02:07
So, we can write r is equals to kh, k times h is k multiplied by h where r is the resistance between a and b.
02:18
At h is equals to 100 millimeters, r is equal to 2 kilo ohm.
02:33
So, k is equals to r divided by h which is equals to 2000 ohm divided by 100 millimeter...