What is the value of the current density

Reference no: EM13324741

The quantity of charge q (in coulombs) that has passed through a surface of area 2.08 cm2 varies with time according to the equation q = 4t3 + 5t + 6, where t is in seconds.

(a) What is the instantaneous current through the surface at t = 0.96 s?

(b) What is the value of the current density?

kA/m2

Reference no: EM13324741

Questions Cloud

How many minutes does light take to reach the earth : The speed of light is 3 x 10^8 m/s. The sun is 93 million miles from earth. How many minutes does light take to reach the earth

Determine the velocity of the car : A car is traveling along a straight road at a velocity of +27.6 m/s when its engine cuts out. For the next 1.40 seconds, Find the velocity of the car at the end of the initial 1.40-second interval

Explain how to calculate the ph of a buffer solution : Calculate the pH of a buffer solution obtained by dissolving 20.0 g of KH2PO4(s) and 30.0 g of Na2HPO4(s) in water and then diluting to 1.00 L.

Case study - the general motors bankruptcy : The US government behaved as a DIP financier. What is a DIP financing package and is it a responsible/ethical use of public funds

What is the value of the current density : The quantity of charge q (in coulombs) that has passed through a surface of area 2.08 cm2 varies with time according to the equation q = 4t3 + 5t + 6, What is the value of the current density

Explain its conjugate base and what is the ph : If a buffer solution is 0.230 M in a weak acid (Ka = 3.8 × 10-5) and 0.410 M in its conjugate base, what is the pH

Find the frequancy for small vibration : The potenial energy for the force between two atoms in a diaomic molcules a-b has he approximate form v(x)= (-a/x^6 )+ (b/x^12), find the frequancy for small vibration

What are the pro and cons of a reverse merger rm : What are the pro and cons of a reverse merger RM and why would a company reverse split (RS) a stock

What are the connections between shaw observations : What are the connections between Shaw's observations and those that Parnas made? How does Shaw's work build on that of Parnas? How does Shaw's work fill in or correct some of the things that Parnas missed in his work?

User Account

All Pages