Apply Ohms law V IR to explain why no voltage can appear ac
     Apply Ohm\'s law. V = IR, to explain why no voltage can appear across a short circuit.  How does Ohm\'s law explain observed current change with increasing voltage across the resistor? 
  
  Solution
We know that current is passed through a circuit if there is a potential difference between the two terminals of the conductor. But in the case of a short circuit, we say that there is no potential difference between the two terminals and a large amount of current is passed through it.
Ohm\'s Law:
V=IRV=IR
Now, if R=0R=0, as is the case for an ideal wire, there is zero voltage across for any current through.
voltage and current are directly related
hence current increases

