Answer:
I hope it helps.
When a cold alcohol thermometer is placed in a hot liquid, the column of alcohol goes down slightly before going up. Explain why
1 answer:
Answer:
See below
Explanation:
<h3>When a cold alcohol thermometer is placed in a hot liquid, the following takes place.</h3>- The glass of thermometer expands because of the heat so the column of alcohol goes down.
- After some time, the heat travels to alcohol and then alcohol expands.
Alcohol first goes slightly down because of the expansion of the glass of thermometer before doing up.
You might be interested in
Answer:(b)
Explanation:
Given
Electric current flowing through the horizontal wire towards the observer's face.
The direction of the magnetic field is given by the right-hand thumb rule, i.e. place the thumb in the direction of current and the wrapping of fingers will give the direction of the magnetic field
the direction of the magnetic field will be counterclockwise as observed by an observer.
