2-Consider the circuit shown ,where all resistors have thesameresistance R.At t=0,with the capacitor c uncharged ,theswitch isclosed

a-)find the charge across the capacitor when the switchisclosed for a long time

b-)The switch is now opened at t =0.write an equation forthecurrent I 2 as a function of time

c-)Find the time interval required for the charge onthecapacitor to fall to one-fifth its initialvalue.

.

answers

watching

views

For unlimited access to Homework Help, a Homework+ subscription is required.

Related questions

A circuit is constructed with four resistors, one capacitor,one battery and a switch as shown. The values for the resistorsare: R1 = R2 = 48 O, R3 = 74 O and R4 = 158 O. The capacitance is C= 45 ÂµF and the battery voltage is V = 12 V. The positive terminalof the battery is indicated with a + sign.

1) The switch has been open for a long timewhen at time t = 0, the switch is closed. What is I4(0), themagnitude of the current through the resistor R4 just after theswitch is closed?

What is Q(8), the charge on the capacitor after theswitch has been closed for a very long time?

After the switch has been closed for a very long time,it is then opened. What is Q(topen), the charge on the capacitor ata time topen = 705 Âµs after the switch was opened?

What is IC,max(closed), the current that flows throughthe capacitor whose magnitude is maximum during the time when theswitch is closed? A positive value for the current is defined to bein the direction of the arrow shown.

What is IC,max(open), the current that flows through thecapacitor whose magnitude is maximum during the time when theswitch is open? A positive value for the current is defined to bein the direction of the arrow shown.

In Figure P27.47, suppose the switch has been closed for a time interval sufficiently long for the capacitor to become fully charged. Find (a) the steady-state current in each resistor and (b) the charge on the capacitor. (c) The switch is now opened at . Write an equation for the current in as a function of time and (d) find the time interval required for the charge on the capacitor to fall to one-fifth its initial value.

beigecattle252

Weekly leaderboard

Home

Homework Help 3,900,000

Physics 110,000

Related textbook solutions

Physics: Principles with Applications

Related questions

Weekly leaderboard