2. Solved Papers
  3. JCECE Engineering

JCECE Engineering JCECE Engineering Solved Paper-2006

  • question_answer
    In a step-up transformer the turn ratio is\[1:8\]. A lead accumulator \[(emf=6\,\,V)\] is connected across the primary coil of the transformer. The voltage across the secondary coil is:

    A) \[48\,\,V\]                         

    B) \[0.75\,\,V\]

    C)  \[14\,\,V\]                                        

    D)  \[zero\]

    Correct Answer: D

    Solution :

    Key Idea: Lead accumulator battery is a \[DC\] power supply source. Transformer is based on the principle of mutual induction and works on \[AC\] power supply since lead accumulator is a \[DC\] source of supply, hence voltage across secondary is zero.


You need to login to perform this action.
You will be redirected in 3 sec spinner