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Determine the current through the batter...

Determine the current through the battery in the circuit shown in figure.

(a) immediately after the switch S is closed
(b) after a long time.

Text Solution

Verified by Experts

The correct Answer is:
A, C
a. Immediately after the switch is closed whole current passes through `C_1`.
`:. i=E/R_1`
b. Long after switch is closed no current will pass through `C_1 and C_2`.
`:. i=E/(R_1+R_3)`
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Knowledge Check

  • In the given figure that work done by the battery after the switch S is closed is

    A
    `100muJ`
    B
    `-100muJ`
    C
    `80muJ`
    D
    `-80muJ`

  • In the circuit diagram the current through the battery immediately after the switch S is closed is

    A
    zero
    B
    `E/R_1`
    C
    `E/(R_1+R_2)`
    D
    `(E)/(R_(1))+(R_2R_3)/(R_2+R_3)`

  • In the circuit as shown in figure the switch is closed at t = 0 . A long time after closing the switch

    A
    voltage drop across the capacitor is `E`
    B
    curent through the battery is `E//R_(1) +R_(2)`
    C
    enegru stores in the capacitor is
    `(1)/(2)C((R_(2)E)/(R_(1)+R_(2)))^(2)`
    D
    current through the capacitor becomes zero

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