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Statement-1: If the plates of a capacito...

Statement-1: If the plates of a capacitor are connected through a conducting wire, then its capacitance becomes infinite.
Statement-2: The capacitors cannot be charged.

A

Statement-1 is True, Statement-2 is True, Statement-2 is a correct explanation for statement-1

B

Statement-2 is True, Statement-2 is True, Statement-2 is NOT a correct explanation for Statement-1

C

Statement-1 is True, Statement-2 is False

D

Statement-1 is False, Statement-2 is True.

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question regarding the two statements about the capacitor, we will analyze each statement step by step. ### Step 1: Understanding Statement 1 **Statement 1:** If the plates of a capacitor are connected through a conducting wire, then its capacitance becomes infinite. - A capacitor consists of two plates separated by a dielectric material. The capacitance \( C \) of a capacitor is defined as: \[ C = \frac{Q}{V} \] where \( Q \) is the charge on one plate and \( V \) is the potential difference between the plates. - When we connect the two plates of the capacitor with a conducting wire, the potential difference \( V \) between the plates becomes zero because the wire allows charge to flow freely, equalizing the potential on both plates. - Since \( V = 0 \), substituting this into the capacitance formula gives: \[ C = \frac{Q}{0} \] This expression suggests that capacitance \( C \) approaches infinity when \( V \) is zero, as long as there is some charge \( Q \) present. ### Conclusion for Statement 1: - **Statement 1 is correct.** The capacitance becomes infinite when the plates are connected by a conducting wire. ### Step 2: Understanding Statement 2 **Statement 2:** The capacitors cannot be charged. - Charging a capacitor requires a potential difference between the plates. When the plates are connected by a conducting wire, the potential difference \( V \) is zero, which means there is no driving force to move charges from one plate to another. - The relationship between charge \( Q \), capacitance \( C \), and potential difference \( V \) is given by: \[ Q = C \cdot V \] If \( C \) is infinite (as established in Statement 1) and \( V \) is zero, then: \[ Q = \infty \cdot 0 \] This indicates that no charge can accumulate on the capacitor plates because the potential difference is zero. ### Conclusion for Statement 2: - **Statement 2 is also correct.** The capacitor cannot be charged when the plates are connected by a conducting wire. ### Final Conclusion: Both statements are correct, but Statement 2 does not specifically explain why capacitors cannot be charged in all situations. Therefore, while both statements are true, Statement 2 is not a suitable explanation for Statement 1.
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Knowledge Check

  • If the plates of a capacitor are joined together by as conducting wire, then its capacitance

    A
    reamains unchanged
    B
    decreases
    C
    become zero
    D
    becomes infinite
  • If the two plates of the charged capacitor are connected by a wire, then

    A
    potential will becomes infinte
    B
    charge will becomes infinite
    C
    capacitor will get discharged
    D
    charge will becomes double that of earlier one
  • STATEMENT-1 : When the plates of a charged capacitor are connected to a resistor, a current starts flowing in the resistor. and STATEMENT-2 : A charged capacitor acts as a battery of steady emf.

    A
    Statement-1 is True, Statement-2 is True, Statement-2 is a correct explanation for Statement-1
    B
    Statement-1 is True, Statement-2 is True, Statement-2 is NOT a correct explanation for Statement-1
    C
    Statement-1 is True, Statement-2 is True
    D
    Statement-1 is False , Statement-2 is True
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