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VARVARA [1.3K]
2 years ago
6

Determine the identity of an unknown element X using the given table and following clues: I) Element X is a solid II) Element X

will bond ionically with element C in a 1:1 ratio. III) As a positive ion, it will have the same number of electrons as argon.
Physics
2 answers:
klasskru [66]2 years ago
6 0
The answer is calcium. I just did it and it was correct
bogdanovich [222]2 years ago
4 0

The answer here is cleary Calcium.

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2 years ago
How are step up transformers used in the transmission of electrical energy
tensa zangetsu [6.8K]

Answer:

Transformers are used to increase or decrease the voltage of AC currents

Explanation:

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\frac{V_p}{V_s}=\frac{N_p}{N_s}

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Np, Ns are the number of turns in the primary and secondary coil

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- Step-down transformers: these have N_s < N_p, so that V_s < V_p, which means that they decrease the voltage. They are used at the end of the transmission lines, before the houses, in order to decrease the voltage and allow the household appliances to work properly (in fact, household appliances need lower voltages to work)

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