Question

Find in an a.c. LCR circuit,

a. resultant voltage

b. impedance of the circuit

c. phase difference

d. average power

e. resonant frequency​

Answer 1

Answer:

3...Electrons are said to be quantized because they need a quantum of energy to move to a different sublevel. ... When atoms absorb energy, electrons move into higher energy levels. These electrons lose energy by emitting light when they return to lower energy levels.

4....Let me tell you at first that molar weight of CO2 is 12+16*2=44

Now, can we say in this way?

22.4 lit indicates 1 mole at STP.

Therefore, 5.6 lit denotes 0.25 mole.

Therefore, weight of 0.25 mole of CO2 = 44*0.25=11 grams.

5.... Reaction: Metal   +   Dilute acid   →   Salt   +   Hydrogen   Zn   +    2HCl   →   ZnCl2   +   H2 ↑

Zn   +    H2SO4    →     ZnSO4    +    H2 ↑

Collection of Gas: Hydrogen gas is collected by downward displacement of water.

6.. The valence electronic configuration of alkali metals is ns1. They can attain the noble gas electronic configuration by the removal of one electron which is a stable configuration. Due to low ionization potential and having the smallest nuclear charge they can easily lose an electron. Hence, alkali metals are considered as a powerful reducing agent.

Answer 2

Answer:

Answer:

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Answer:−

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