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A voltage source V=V(0) sin (100 t) is c...

A voltage source `V=V_(0) sin (100 t)` is connected to a black box in which there can be either one element out of `L,C,R` or any two of them connected in series.
At steady state, the variation of current in the circuit and the source voltage are plotted together with time.using an oscilloscope, as shown
The element (s) present in black box is/are:

A

only `C`

B

`L` and `C`

C

`L` and `R`

D

`R` and `C`

Text Solution

Verified by Experts

The correct Answer is:
D
As current is leading the source voltage, so circuit should be capacitive in nature and as phase difference is not `pi/2`, it must contain resistor also.
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Knowledge Check

  • In a circuit L, C and R are connected in series with an alternating voltage source of frequency f . The current lead the voltages by 45^(@) . The value of C is :

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