The phase difference between the alternating current and emf is TE/2. Which ofthe following cannot be the constituent of the circuit? (a) C alone (b) L alone (c) L and C (d) R and L

The phase difference between the alternating current and emf is TE/2.

1.	The phase difference between the alternating current and emf is TE/2. Which ofthe following cannot be the constituent of the circuit? (a) C alone (b) L alone (c) L and C (d) R and L
Answer» If the PHASE difference between V and I is pi/2Hence,Power=V×I=VI COS pi/2=0Since power is 0 it could only consists of REACTIVE ELEMENTS(L&C),Resistance R canonot be present.THANKS!!☺

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The phase difference between the alternating current and emf is TE/2. Which ofthe following cannot be the constituent of the circuit? (a) C alone (b) L alone (c) L and C (d) R and L

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