Current during the resistor, Physics

Assignment Help:

Ques:

A 12 volt battery is associated in series with an initially-uncharged 120 microfarad capacitor and a 25 ohm resistor. What is the current during the resistor at the instant the connection is made?

Ans:

Just for an immediate subsequent to the connection is made but before any charge has built up on the capacitor the capacitor "acts like" a piece of wire. Therefore for that instant only it is as if the battery in the given circuit is connected across the resistor. Therefore for that instant the resistor voltage is the battery voltage. Utilizing the battery voltage in V=IR and solving for I we find that I = 0.48 A.

237_Current during the resistor.png


Related Discussions:- Current during the resistor

Calculate the wavelength, If you "bow" a string on a violin you hear a note...

If you "bow" a string on a violin you hear a note with a frequency of 1020 Hz. If the length of the string is about 40cm, what is the "wave" on the string? Draw a diagram to show

Determine the pd across the resistor, An alternating voltage v=250sin800t v...

An alternating voltage v=250sin800t volts is applied across a series circuit having a 30 resistor and 50µF capacitor. Calculate (a) the circuit impedance, (b) the current ?

Correspondence limit, Correspondence limit (N. Bohr) The restriction at...

Correspondence limit (N. Bohr) The restriction at which a more general theory decrease to a more specialized theory while the conditions that the specialized theory needs are t

What is the centre point of gravity?, An imaginary point in a body of matte...

An imaginary point in a body of matter where, for convenience in certain calculations, the total weight of the body may be thought to be at that point.It is a point where the gravi

Vibrating strings, Two wires on a piano are the same length and are pulled ...

Two wires on a piano are the same length and are pulled by the same tension. wire 1 vibrates at a frequency 1.5 times the frequency of wire 2. Calculate the ratio of their masses (

What distance does the cheetah cover, A cheetah can accelerate from rest to...

A cheetah can accelerate from rest to a speed of 27.8 m/s in 5.20 s. The cheetah can carry this speed for 9.70 s before it quickly runs out of energy and stops. What distance does

Pie, my question is regarding value of pie whether its decimal value which ...

my question is regarding value of pie whether its decimal value which has non-repeating nature goes to infinity or it ends at some place?

Principle of electric motor, An electric motor is a device which converts e...

An electric motor is a device which converts electrical energy into mechanical energy. Principle of electric motor : An electric motor essentially consists of a rectangular co

In a plot of photoelectric current versus anode potential, In a plot of pho...

In a plot of photoelectric current versus anode potential, how does 1. The saturation current varies with anode potential for incident radiations of dissimilar frequencies but s

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd