Physics-
General
Easy

Question

In the circuit shown in figure neglecting source resistance the voltmeter and ammeter reading will respectively, will be

  1. 0V, 3A    
  2. 150V, 3A    
  3. 150V, 6A    
  4. 0V, 8A    

The correct answer is: 0V, 8A


    The voltage V subscript L end subscript and V subscript C end subscript are equal and opposite so voltmeter reading will be zero.
    Also R equals 30 capital omega comma X subscript L end subscript equals X subscript C end subscript equals 25 capital omega
    So i equals fraction numerator V over denominator square root of R to the power of 2 end exponent plus left parenthesis X subscript L end subscript minus X subscript C end subscript right parenthesis to the power of 2 end exponent end root end fraction equals fraction numerator V over denominator R end fraction equals fraction numerator 240 over denominator 30 end fraction equals 8 A

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