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anastassius [24]
3 years ago
14

Which one of the ff is correct about Acids?

Physics
1 answer:
Margaret [11]3 years ago
7 0

Answer:

Option(b) is the correct answer to the given question .

Explanation:

The taste of the acids are sour due to H- ions where the taste of bases are bitter due to the OH-ions. The HP value of the acids are less than 7 where as the HP value of bases are greater than 7 .

The POH value of the acids are greater than the 7 and POH value of acids are less than the 7 . HP and the POH scale are used to find the difference between acid and the base.

  • All the other options are not correct for the acids that's why these are incorrect option .

Therefore Option(b) is the correct answer .

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If a transformer has 50 turns in the primary winding and 10 turns on the secondary winding, what is the reflected resistance in
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Answer:

The reflected resistance in the primary winding is 6250 Ω

Explanation:

Given;

number of turns in the primary winding, N_P = 50 turns

number of turns in the secondary winding, N_S = 10 turns

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Determine the turns ratio;

K = \frac{N_P}{N_S} \\\\K = \frac{50}{10} \\\\K = 5

Now, determine the reflected resistance in the primary winding;

\frac{R_P}{R_S} = K^2\\\\R_P = R_SK^2\\\\R_P = 250(5)^2\\\\R_P = 6250 \ Ohms

Therefore, the reflected resistance in the primary winding is 6250 Ω

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4 years ago
Static charges can be applied to neutral objects by friction, induction or conduction. What do all of these methods utilize to c
kvv77 [185]

Answer:

B) electrons

Explanation:

When charge is transferred by friction, induction or conduction, the charge carriers are the electrons.

In fact, protons and neutrons are found within the nucleus of the atoms, so they are tightly bound and they cannot be easily gained/given off. On the contrary, electrons are found in the electron clouds around the nucleus, so atoms can more easily gain/lose electrons, which become free and can be passed by an object to another.

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- Conduction: by putting a charged object in contact with a neutral object, electrons can be transferred from the charged object to the neutral one

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nikdorinn [45]
M=meter, km=kilometer, mm=millimeter, mg=micrometer, cm=centimeter
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