CBSE Class 12 Physics 2023 Delhi Set 1 Paper
© examsiri.com
Question : 27 of 35
Marks:
+1,
-0
An alternating voltage of is applied across a device . A current of 0.22 A flows in the circuit and it lags behind the applied voltage in phase by radian. When the same voltage is applied across another device , the current in the circuit remains the same and it is in phase with the applied voltage.
(i) Name the devices and and,
(ii) Calculate the current flowing in the circuit when the same voltage is applied across the series combination of and .
(i) Name the devices and and,
(ii) Calculate the current flowing in the circuit when the same voltage is applied across the series combination of and .
Solution:
(i) Since, current lags behind the voltage, is an inductor.
Since, current and voltage remain in phase, is a resistor.
(ii) Since,
And,
So, the required current
Since, current and voltage remain in phase, is a resistor.
(ii) Since,
And,
So, the required current
© examsiri.com
Go to Question: