Calculating Electric Field Strength from a Point Charge

AI Thread Summary
The discussion focuses on calculating the electric field strength from a point charge of +4.3 micro Coulombs (μC) at a distance of 3 cm. Participants clarify that μC represents micro Coulombs, equivalent to 10^-6 Coulombs. Understanding this unit is essential for accurately performing the calculation. The electric field strength can be determined using the formula E = k * |Q| / r², where k is Coulomb's constant, Q is the charge, and r is the distance. This information is crucial for solving the problem correctly.
quickslant
Messages
90
Reaction score
0
You are observing the effects of a single point charge with a magnitude of +4.3 mu Columbs

calculate the strength of the electric field 3cmaway from the charge in any direction..

first i don't know why there is mu C, shouldn't it have been something like 4.3 x10^-7 C? or does mu represent something? do i need to know what that means to answer this question? someone please help
 
Physics news on Phys.org
muC = μC = micro Coulomb = 10^-6 C
 
thank you very much..
 
TL;DR Summary: I came across this question from a Sri Lankan A-level textbook. Question - An ice cube with a length of 10 cm is immersed in water at 0 °C. An observer observes the ice cube from the water, and it seems to be 7.75 cm long. If the refractive index of water is 4/3, find the height of the ice cube immersed in the water. I could not understand how the apparent height of the ice cube in the water depends on the height of the ice cube immersed in the water. Does anyone have an...
Thread 'Variable mass system : water sprayed into a moving container'
Starting with the mass considerations #m(t)# is mass of water #M_{c}# mass of container and #M(t)# mass of total system $$M(t) = M_{C} + m(t)$$ $$\Rightarrow \frac{dM(t)}{dt} = \frac{dm(t)}{dt}$$ $$P_i = Mv + u \, dm$$ $$P_f = (M + dm)(v + dv)$$ $$\Delta P = M \, dv + (v - u) \, dm$$ $$F = \frac{dP}{dt} = M \frac{dv}{dt} + (v - u) \frac{dm}{dt}$$ $$F = u \frac{dm}{dt} = \rho A u^2$$ from conservation of momentum , the cannon recoils with the same force which it applies. $$\quad \frac{dm}{dt}...
Back
Top