When an ac source of emf`e=E_(0) sin (100 t)` is connected across a circuit, the phase difference between emf e and currnet I in the circuit is observed to be `(pi)//(4)` as shown in fig. If the circuit consists possibly only of R-C or R-C of L-R series, find the relationship find the relationship between the two elements.

Options

A. `R = 1 k Omega, C = 10 mu F`
B. `R = 1 k Omega, C = 1 mu F`
C. `R = 1 k Omega, H = 10 H`
D. `R = 1 k Omega, L = 1 H`

Answer

C

Explanation

From the graph current leads emf. Hence the circuit should be `RC`. For the circuit `"tan" (pi)/(4) = (1)/(omega CR)`