The potential difference between the center of the sphere and the surface of the sphere will be PD=3.6 x 10^8 V
It is given that:-
Charge Q = +4.00 mC or
insulating sphereradius R = 5.00 cm = 0.05 m
The formula for the potentialdifference at the surface of the sphere is given by
The formula for the potentialdifference at the center of the sphere
The difference between the potential difference will be
Thus the potential difference between the center of the sphere and the surface of the sphere will be PD=3.6 x 10^8 V
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Answer:
3.6 x 10^8 V
Explanation:
Q = 4 m C = 4 x 10^-3 C
r = 5 cm = 0.05 m
The formula for the potential at the surface is
Vs = K Q / r = (9 x 10^9 x 4 x 10^-3) / 0.05 = 7.2 x 10^8 V
The formula for the potential at the centre is
Vc = 3/2 Vs
Vc = 1.5 x 7.2 x 10^8 V = 10.8 x 10^8 V
The difference in potential is
V = Vc - Vs = 10.8 x 10^8 - 7.2 x 10^8 = 3.6 x 10^8 V
density
melting point
magnetism
Answer:
flammability
Explanation:
As we know that chemical property of an element will show it's chemical reactivity and its chemical nature on exposing to a reaction.
While physical properties are those which can be measured by some experimental means.
So here we know that all the measurable quantities are
1). Density
2). Melting Point
Here one of the given option is phenomenon in which all the domains of magnet align itself in direction of external magnetic field it is known as Magnetism.
So here correct chemical property is
Flammability.
The flammability of magnesium is the chemical property among those listed. It depicts how it changes to magnesium oxide when heated in an oxygen environment.
The property listed that is a chemical property of magnesium is its flammability. Chemical properties describe how a substance interacts with other substances or changes from one substance to another. Flammability, meaning the ability to burn in the presence of oxygen, is a chemical property because it describes how magnesium will change to magnesium oxide when heated in air.
On the other hand, properties such as density, melting point, and magnetism are physical properties because they describe the physical state of the magnesium and not how it interacts with other chemicals.
#SPJ6
Answer:
It is, however, an important primary step in the water treatment process, because coagulation removes many of the particles, such as dissolved organic carbon, that make water difficult to disinfect. Because coagulation removes some of the dissolved substances, less chlorine must be added to disinfect the water.
Explanation:
reflects green light
reflects all colors of light except green
transmits green light
Answer:
reflects green light.
Explanation:
Answer:
The new length is 1.20138 m
Explanation:
1- We get the increase in length:
The old length = 1.2 m
The coefficient of expansion of of aluminum is 23 * 10⁻⁶ /K.
The old temperature is 15°C.
The new temperature is 65°C
The increase in length= old length * coefficient of expansion *change in temperature
The increase in length = 1.2 * 23 * 10⁻⁶ * (65-15)
The increase in length = 0.00138 m
2- getting the new length:
new length = old length + increase in length
new length = 1.2 + 0.00138
new length = 1.20138 m
Hope this helps :)