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When the source of wave is travelling at a higher speed, the observed frequency rises(you can test this using values and the formula), so A and B are ruled out. When a source of wave approaches an observer, the observed frequency increases. So, initially the observer was detecting a microwave with a higher frequency than the microwave's actual frequency. So, when the microwave emitter stops, the observed frequency falls below f0. So the answer is C.
What were your grades?
Why do u ask?
Negligible internal resistance so no voltage drop inside battery
U firstJust curious
U first
Power output of the cell is the energy it converts from chemical to electrical per unit time and since there is no internal resistance, so all of this energy is dissipated in the resistors
Right!
Not being shyComeon don't be shy
But how come power outcome equal to power loss in resisters I am confused at this point.
You are kidding me ....Not being shy
7A*s........................................... And 1A
Should I show u?
Eng also spoilt my reslut...got an A
So the power produced by the cell is distributed to overcome the resistance of each resistor(this causes power loss). So the power produced by the cell is equal to the power lost in the resistors which is why C is the correct answer. 'Power output of the cell' just means the power produced by the cell.
FFs xD.
Energy is conserved...just think about the energy conversions...the only energy conversion is from electrical to non electrical forms in the resistors which is the power dissipated
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