Part 1)
Answer:
Explanation:
As we know by equation of charging of the capacitor we will have
so we will have
here we know that
so we have
Part b)
Answer:
The time will increase.
Explanation:
As we know that on increasing the value of the resistance the the product of the resistance and capacitance will increase so the time will increase to get the above voltage.
Part c)
Answer:
The capacitor discharges through a very low resistance (the lamp filled with ionized gas), and so the discharge time constant is very short. Thus the flash is very brief.
Explanation:
Since the lamp resistance is very small so the energy across the lamp will totally lost in very short interval of time
Part d)
Answer:
Once the lamp has flashed, the stored energy in the capacitor is gone, and there is no source of charge to maintain the lamp current. The lamp "goes out", the lamp resistance increases, and the capacitor starts to recharge. It charges again and the process will repeat.
Explanation:
Since we know that the battery is connected to the given system so after whole energy of capacitor is flashed out it is again charged by the battery and the process will continue
Answer:
Ohm's Law says
V=I⋅R.
A bit of algebra says
I=VR So V= 110V 25 Ω=4.4VΩ=A
I hope this helps,
Explanation:
Answer:
- The number of electrons transferred is
- The electrons flow from you to the faucet.
- You induce a positive charge in the faucet.
- The electrons flow from the faucet to the cat.
Explanation:
<h3>a)</h3>
The number of electrons will be given by
so, we have:
<h3>b)</h3>
The electrons flow from you, that are charged with electrons, to the faucet, that is discharged.
<h3>c)</h3>
As you approach the faucet, the electrons in your body will repel the electrons in the faucet, inducing a positive charge in it.
<h3>d)</h3>
The cat is charged with a positive charge, as many electron originally from him were transferred to your body, when the cat touch the faucet, the electrons will flow to the cat.
Answer:
1.7% is stored in the polar icecaps, glaciers, and permanent snow
Explanation:
70% of the Earth's surface is covered with water; However, only a small percentage, 0.025%, is suitable for human consumption. A limited resource whose demand, according to the forecasts of the Organization for Economic Cooperation and Development (OECD), will skyrocket up to 55% globally between 2000 and 2050.
In the attached infographic we observe that the total volume of water on Earth is 1,386 million cubic kilometers, of which<em> </em><u>1.7% is forming polar ice, cap glaciers and permanent snow</u>. 1,338 million cubic kilometers of that water is in seas and oceans, that is, 96.5% is in seas and oceans, that is, it is salt water that cannot be drunk.
Only 3.5% of the Earth's water is fresh, but of this percentage, only 1% of the Earth's fresh water flows through the river basins in the form of streams and rivers.
Answer: Option (d) is the correct answer.
Explanation:
Physical change is defined as a change in which no new product is formed, that is, there is no change in chemical composition of a substance.
For example, when ice melt then solid state of water changes into liquid state.
That is, arrangement of atoms changes and bond between the atoms do no break during a physical change.
Thus, we can conclude that the property bonds between atoms do not break; it is only the arrangement that changes explains why matter is conserved in a physical change.