How does one know which way to draw the current, Physics

Assignment Help:

Ques:

In putting Kirchoff's voltage law one draws a schematic diagram of the circuit and then indicates the current in each leg (a.k.a. branch) of the circuit. For every leg of the circuit how does one know which way to draw the current.

Answer:

If you guess incorrect on the current direction when you solve for the current in that branch of the circuit you get a negative value for the value of the current. A negative rate for a current in a specified direction is simply a current in the opposite direction.


Related Discussions:- How does one know which way to draw the current

Describe the operation of a transistor amplifier, Describe the operation of...

Describe the operation of a transistor amplifier in CE configuration. Ans:  Operation  of  a  Transistor  Amplifier  in  CE  configuration:    A  Common  Emitter  NPN transist

Can fibers be bent at right angle, Can fibers be bent at right angle? F...

Can fibers be bent at right angle? Fibers cannot be bent at right angle. All fibers should be bent with a radius that will not alter the internal architecture of the fiber. For

Describe the slope of the solid-liquid phase , A solid substance has a mola...

A solid substance has a molar volume which is  smaller than that of its liquid phase. Which of the following statements regarding the solid-liquid phase transition is/are true?

What is the unit of magnification? , Magnification is the ratio of size of ...

Magnification is the ratio of size of image to the size of object. hence it is a dimensionless constant. It has no units. 1/m is not its unit.(1/m is the unit of power=DIOPTRE)

What is meant by doping, Q. What is meant by doping? The process of ad...

Q. What is meant by doping? The process of addition of extremely small amount of impurity into an intrinsic semiconductor is called doping.

Thermal expansion, When a body is heated, it expands in terms of area, leng...

When a body is heated, it expands in terms of area, length & temperature and volume rises. In a solid, molecules may only have thermal agitation. As temperature of a object enhance

Energy of a body in simple harmonic motion, In general the total energy of ...

In general the total energy of a harmonic oscillator having of two parts,  potential energy (P.E) and kinetic energy (K.E.), the former being because of its displacement from the m

Describe power of a lens, Describe power of a lens. Write its SI unit. What...

Describe power of a lens. Write its SI unit. What do you mean by linear magnification produced by a lens in a direction perpendicular to its axis? Write down the mathematical expre

Determine electric field vector for a negative point charge, For a negative...

For a negative point charge, the electric field vectors: a) Circle the charge b) Point radially in toward the charge c) Point radially away from the charge d) C

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