What is meant by wattles current?​

Wattless Current in an AC circuit is when the average power consumed in such circuit corresponds to Zero. The current in a.c. circuit is said to be wattles if the average power consumed in the circuit is zero.

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nacl or sodium chloride is an ionic compound. this is because an ionic compound pertains to a compound that consists of positively and negatively charged ions. in this case, na (sodium) has a tendency to lose one electron when it reacts with with other atoms, so the resulting sodium ion contains 11 protons and 10 electrons, thus making it positively charged (na+), when chlorine reacts, it usually gains one electron to form an ion called chloride, thus making it negatively charged ( since the ions are oppositely charged, they attract.