Which of the following statements are correct for the RC circuit shown? Select t

ID: 1547547 • Letter: W

Question

Which of the following statements are correct for the RC circuit shown? Select true or false for each statement. (E is the emf of the battery.)

1) The longer S is kept in the position a, the higher is the energy strored in C.

2) After S is moved to b, it takes a time tau=RC for the charge on C to drop to 1/e of its initial value.

3)Right after S is moved to the position b, following a long time in the position a, the potential across C is nearly zero.

4)Right after S is moved to the position b, following a long time in the position a, the current through R is zero.

5) If S is in the position a for a long time, the current through R approaches E/R.

6) Right after S is moved to the position a, following a long time in the position b, the current through R is zero.

7) If S is in the position a for a long time, the current through R approaches zero.

- C R S a b

1) The longer S is kept in the position a, the higher is the energy strored in C.

True

2) After S is moved to b, it takes a time tau=RC for the charge on C to drop to 1/e of its initial value.

True

3)Right after S is moved to the position b, following a long time in the position a, the potential across C is nearly zero

False

4)Right after S is moved to the position b, following a long time in the position a, the current through R is zero.

False

5) If S is in the position a for a long time, the current through R approaches E/R.

True

6) Right after S is moved to the position a, following a long time in the position b, the current through R is zero.

False

7) If S is in the position a for a long time, the current through R approaches zero.

True

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