Answer Posted / dileep
currents are two types 1).conventional current
2).directional current
if u take a semi conductors then current is due
to both of electrons and holes .electrons will flow towards
+ve terminal battery supply,in case of holes flows to -ve
terminal conventional current .in case of diodes arrow head
shows that conventional current i.e opposite to electron
current so in semiconconductors u are correct
but in case of metals current is due to
electrons only holes will not exit .direction of current is
same as voltage polarity
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