Alternating Current

Physics
292 Views

In the circuit shown, and . They are connected in series with an a.c. source  as shown. Which of the following options is/are correct? 

A
At , the circuit behaves like a capacitor
B
At the current flowing through the circuit becomes nearly zero
C
The current will be in phase with the voltage if
D
The frequency at which the current will be in phase with the voltage is independent of
View solution>

In an LCR circuit as shown below both switches are open initially. Now switch is closed, kept open. ( is charge on the capacitor and is capacitive time constant). Which of the following statement is correct?

A
At
B
At
C
At
D
Work done by the battery is half of the energy dissipated in the resistor.
View solution>

In the given circuit, the AC source has . Considering the inductor and capacitor to be ideal, the correct choice(s) is(are) :

A
The current through the circuit, is 0.3 A.
B
The current through the circuit, is A.
C
The voltage across resistor V.
D
The voltage across resistor V.
View solution>