The resistance of a conductor is inversely proportional to the cross sectional area of the conductor.
<u>Explanation:</u>
The resistors are used to resist or block the flow of current in any circuit. As per Ohm's law, resistance is inversely proportional to the current flow or charge in the circuit. But the resistance of a conductor will depend on the length of the conductor and cross sectional area of the conductor along with specific resistance of the material with which the conductor is made.
Here, Rho is the specific resistance, L is the length of the conductor and A is the cross sectional area of the conductor.
As the resistance offered by the conductor will be directly proportional to the length of the conductor and inversely proportional to the cross sectional area of the conductor. So the resistance of a conductor is inversely proportional to the cross sectional area of the conductor.
A). 6,000 Hz.
No. This is in the middle of the human hearing range. If a radio station were transmitting on this frequency, then every wire and cable in town would pick up a little of its energy, and you'd hear it on every telephone, earbud, and headphone, and it would come out of every loudspeaker.
B). 6,000,000 Hz. (6 mHz)
No. This isn't used by 'commercial' broadcasting stations, but it IS used by
foreign short-wave stations, to broadcast news, 'culture', and propaganda
into other countries.
C). 60 Hz.
No. This is the frequency of the AC that you use when you plug anything
into a wall socket. All of the electric company's power lines RADIATE a
little bit of energy at this frequency, so it wouldn't be a very smart frequency
for a radio station to try to use, since the whole country is already blanketed
with interference at this frequency.
D). 600,000 Hz (600 kHz)
Yes ! This is the "600" or "60" or "6" that's marked
near the left end of your AM radio dial.
yay !
1000 m/s
You have the wavelength and frequency, you just need to solve for velocity. You can do this by multiplying each side of the equation by frequency.
No. Science is all about facts and experiments. Making stuff up would go against that, and wouldn't be science.
Answer:
Explanation:
k = Boltzmann constant =
r = Radius of gas molecule =
t = Temperature = 300 K
P = Pressure
Volume of gas per molecule is given by
From the ideal gas law we have
The pressure at which the finite volume of the molecules should cause noticeable deviations from ideal-gas behavior is