Question 97 of 190
For a series circuit, vs curve is shown
(a) To the left of , the circuit is mainly capacitive.
(b) To the left of , the circuit is mainly inductive.
(c) At , impedance of the circuit is equal to the resistance of the circuit.
(d) At , impedance of the circuit is .
Choose the most appropriate answer from the options given below.
Show answer and solution
Answer: (C) (a) and (c) only
The impedance of an AC circuit is given by, .
For current to be maximum should be minimum. The value of will be minimum when . Therefore, the value of . Hence, statement C is correct and statement D is wrong.
To the left of i.e. when , . Therefore, the circuit is mainly capacitive. Hence, statement A is correct and statement B is wrong.
For current to be maximum should be minimum. The value of will be minimum when . Therefore, the value of . Hence, statement C is correct and statement D is wrong.
To the left of i.e. when , . Therefore, the circuit is mainly capacitive. Hence, statement A is correct and statement B is wrong.
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