The image as shown here can here can be used to describe charging by induction.
<h3>What is a charge?</h3>
A charge may be positive or negative. One of the methods of transferring a charge is by induction.
In this case, an objects induces an opposite charge on a material. The image as shown here can here can be used to describe charging by induction.
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Answer:
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Both exceed the matter-energy equivalent of luminous matter
- Dark matter has only an attractive gravitational effect, while the dark energy is repulsive in nature
Explanation:
Dark matter is defined as the matter which consists of about 85% of the total matter of the universe and is no-baryonic in nature.
It is attractive in nature and exerts gravitational pulling effect. Even individual galaxies are under the influence of dark matter. It is way more powerful than the visible matter.
Dark energy is that form of energy which is said to be responsible for the universe's expansion and is repulsive in nature
Answer:
Option B) This minimizes the harmful side effects of the radiations
Explanation:
Half-life is the time taken for the decay of an radio-active atom in which it disintegrates such that it becomes half of its value at the beginning.... The nuclei should be in active mode for a longer duration sufficient for the treatment of the condition but these nuclei should have a sufficient shorter half life so that they don't get enough time to cause any damage to the health of the person other than treating the cause.
A shorter half life gives the assurance that the radiation after the treatment will leave the body without getting accumulated and cause harm to the body cells and other organs.
Answer:
P₂ = 252 W
Explanation:
The electrical power is
P = V I
The potential difference is
V = I R
I = V / R
Let's replace
P = V² / R
Let's use the given values to calculate the resistance of the bulb
R = V² / P
R = 120²/75
R = 192 ohm
This resistance value does not depend on the applied voltage, so it is constant
Let's calculate the power in Europe
P₂ = V₂² / R
P₂ = 220²/192
P₂ = 252 W
the bulb dissipates much more power
