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Assertion: If an inductor coil is connec...

Assertion: If an inductor coil is connected to DC source, the current supplied by it is `I_(1)`. If the same coil is connected with an AC source of same voltage. Then current is `I_(2)`, then `I_(2) lt I_(1)`.
Reason: In AC circuit, inductor coil offers more resistance.

A

If both Assertion and Reason are true and Reason is the correct explanation of Assertion.

B

If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.

C

If Assertion is true but Reason is false.

D

If Assertion is false but Reason is true.

Text Solution

AI Generated Solution

The correct Answer is:
To solve the given problem, we need to analyze the assertion and reason provided in the question step by step. ### Step 1: Understand the Assertion The assertion states that when an inductor coil is connected to a DC source, the current supplied is \( I_1 \). When the same coil is connected to an AC source of the same voltage, the current is \( I_2 \), and it claims that \( I_2 < I_1 \). ### Step 2: Analyze the Behavior of the Inductor in DC When an inductor is connected to a DC source, it behaves like a short circuit after a transient period. The current through the inductor can be calculated using Ohm's law: \[ I_1 = \frac{V}{R} \] where \( V \) is the voltage of the DC source and \( R \) is the resistance of the circuit. ### Step 3: Analyze the Behavior of the Inductor in AC When the same inductor is connected to an AC source, the inductor introduces inductive reactance (\( X_L \)), which affects the total impedance (\( Z \)) of the circuit. The impedance in an AC circuit with an inductor is given by: \[ Z = \sqrt{R^2 + X_L^2} \] The current in the AC circuit can be calculated as: \[ I_2 = \frac{V}{Z} \] ### Step 4: Compare the Currents Since \( Z \) (impedance) is always greater than \( R \) (resistance) in an AC circuit with an inductor, we can conclude: \[ I_2 = \frac{V}{Z} < \frac{V}{R} = I_1 \] Thus, \( I_2 < I_1 \) is indeed correct. ### Step 5: Understand the Reason The reason states that in an AC circuit, the inductor coil offers more resistance. This is true because the inductive reactance \( X_L \) contributes to the total impedance \( Z \), making it larger than just the resistance \( R \). Therefore, the current \( I_2 \) is reduced due to the increased total impedance. ### Conclusion Both the assertion and the reason are correct, and the reason correctly explains the assertion. ### Final Answer Both assertion and reason are correct, and the reason is the correct explanation for the assertion. ---

To solve the given problem, we need to analyze the assertion and reason provided in the question step by step. ### Step 1: Understand the Assertion The assertion states that when an inductor coil is connected to a DC source, the current supplied is \( I_1 \). When the same coil is connected to an AC source of the same voltage, the current is \( I_2 \), and it claims that \( I_2 < I_1 \). ### Step 2: Analyze the Behavior of the Inductor in DC When an inductor is connected to a DC source, it behaves like a short circuit after a transient period. The current through the inductor can be calculated using Ohm's law: \[ ...
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