Physics · 2010
NEET 2010 · Prelims · Code A · Q38
A 220-volt input is supplied to a transformer. The output circuit draws a current of 2.0 ampere at 440 volts. If the efficiency of the transformer is…
A $\displaystyle 220$-volt input is supplied to a transformer. The output circuit draws a current of $\displaystyle 2.0$ ampere at $\displaystyle 440$ volts. If the efficiency of the transformer is $\displaystyle 80$%, the current drawn by the primary windings of the transformer is :
Official answer
(1)
5.$\displaystyle 0$ ampere
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