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3 years ago

Differentiate between a cation and an anion.

Physics

1 answer:

morpeh [17]3 years ago

4 0

Answer:

The positively charged ions are called cations and negatively charged ions are called anions.

Explanation:

When an atom releases an electron to form the nearest rare gas configuration, it forms a positive ion.
Similarly, an atom receives an electron to form the nearest electronic configuration, it forms negative ions.
The positive ions have an affinity towards the negative electrode and moves towards it. So it is called cations.
The negative charge ions have an affinity towards the positive electrode and moves towards it. So, it is called anions.
Hence, the positively charged ions are called cations and negatively charged ions are called anions.

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Answer:

Object should be placed at a distance, u = 7.8 cm

Given:

focal length of convex lens, F = 16.5 cm

magnification, m = 1.90

Solution:

Magnification of lens, m = - $\frac{v}{u}$

where

u = object distance

v = image distance

Now,

1.90 = $\frac{v}{u}$

v = - 1.90u

To calculate the object distance, u by lens maker formula given by:

$\frac{1}{F} = \frac{1}{u}+ \frac{1}{v}$

$\frac{1}{16.5} = \frac{1}{u}+ \frac{1}{- 1.90u}$

$\frac{1}{16.5} = \frac{1.90 - 1}{1.90u}$

$\frac{1}{16.5} = \frac{ 0.90}{1.90u}$

u = 7.8 cm

Object should be placed at a distance of 7.8 cm on the axis of the lens to get virtual and enlarged image.

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3 years ago

What is a change in the speed of an object called?

mina [271]

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3 years ago

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kykrilka [37]

Answer:

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Explanation:

A) -12 + 10

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2 years ago

It takes a car traveling at 18 m/s, 240 seconds to reach Chick-Fil-A from the school. Determine how far Chick-Fil-A is from the

777dan777 [17]

Answer:

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Explanation:

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2 years ago

A vacuum cleaner has a rating of 460 W on 230 V mains. The value of the fuse connected in the plug will be

amid [387]

Answer:

2 amps

Explanation:

Given data

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2 years ago

Differentiate between a cation and an anion.​

Differentiate between a cation and an anion.