We know, electric current flows from the phase wire to thepower load. So, to block the current right at phasewire switches connected to a phase wire.
a. Live wire and neutral wire.
b. AC and DC.
An inverter is an electric device that changes AC intoDC and vice versa.It is used to convert AC source to DC source orDC source to AC source.
A battery charger is a device that is used to putenergy into a secondary cell or rechargeable cell byforcing an electric current through it.
It is used to charge the battery of the mobile phone,automobile, laptop, etc.
A transformer that converts high voltage AC tolow voltage AC is called step-down transformers.It is used at the power sub-station to decrease theAC voltage before distribution.
A transformer is a device that converts high voltageAC to low voltage AC of the same frequencyand viceversa The function of the step-up transformer is that itconverts the low voltage of current to high voltage.
A current-carrying wire exerts a force on amagneticcompass and defects it from its usual north-southposition which is called the motor effect.
When current is passed through a conductor, amagnetic field is developed around it.
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