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

Time constant in inductors, Time constant in Inductors: It is impossibl...

Time constant in Inductors: It is impossible to decide exactly when the maximum point is reached on an exponential curve, or when the curve has fallen to exactly zero.   To ena

Wave optics: oscillation of particle, In forced oscillation of a particle, ...

In forced oscillation of a particle, the amplitude is maximum for a frequency  ω1 of the force while  the energy is maximum for a frequency  ω2 of the force, then what is relations

Cooling by radiation, Assume a hot system at temperature T placed in an env...

Assume a hot system at temperature T placed in an environment at a lower temperature T0. The system emits more radiation than it absorbs and cools down whereas the surrounding abso

What is work, What is Work Everyone knows what work is, right? It is an...

What is Work Everyone knows what work is, right? It is anything you would rather not do, like take out the trash, or study for a test. Well, not quite. In everyday language thi

Demonstrate ultrasonic flaw detector in transmission mode, Demonstrate the ...

Demonstrate the typical ultrasonic flaw detector in transmission mode? A typical ultrasonic flaw detector into its transmission mode is as demonstrated below. In this w

.induced emf, applications of statically induced emf and dynamically induce...

applications of statically induced emf and dynamically induced emf

WORK AND ENERGY, A boy throws a ball of mass 20 kg vertically upwards.It ra...

A boy throws a ball of mass 20 kg vertically upwards.It raises to a maximum height of 100 m.At what height will the kinetic energy be reduced to 70%?

Electric field to be non-zero at a point in space, Is it probable for the e...

Is it probable for the electric field to be non-zero at a point in space where the electric potential is zero? Ans: Regard as for instance the case of an electric potential

What is neutral buoyancy, What is neutral buoyancy? Buoyancy is the net...

What is neutral buoyancy? Buoyancy is the net upward force experienced by an object submersed in a fluid. Pascal's principle dictates that fluid pressure on an object enhances

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