Answer:
D. Photoelectric cell
Explanation:
Photoelectric cell converts light energy into electrical energy. They can do this because of something called the photovoltaic effect
Answer:
Explanation:
- For diagram refer the attachment.
It is given that five cells of 2V are connected in series, so total voltage of the battery:
Three resistor of 5, 10, 15 are connected in Series, so the net resistance:
According to ohm's law:
On substituting resultant voltage (V) as 10 V and resultant resistant, as 30 we get:
The electric current passing through the above circuit when the key is closed will be <u>0.33 A</u>
Answer:
Not be changed
Option: D
<u>Explanation:</u>
The physical quantity which has both ‘magnitude and direction’ is called vector. These vectors are represented by a line and an arrow, <em>the line represent the magnitude and arrow represent the direction of the physical quantity</em>. The vectors are added and subtracted according to the direction of the vectors.
According to the vector law addition while adding vectors direction and length of the vector is not be changed.<em> If the length of the vector changed the magnitude is also changed while so, while adding vectors length must not be changed.
</em>
Yes it is correct and true.
Answer:
Without the powers of the Flash, no. ... This would allow the Flash to force his molecules through the object he wants to phase through by moving them through the gaps in the object's atoms. It would probably cause more damage to the body or the object being phased through than shown in the comics/show, but it can be done.