Calculate Electric Field Strength for a Charged Object

AI Thread Summary
To calculate the electric field strength for a charged object with a mass of 9.11E-31 kg and a charge of 1.602E-19 coulombs, the formula E = mg/q is used. The resulting electric field strength is 1.76E11 N/C, which balances the weight of the object. This calculation illustrates that electric field strength is directly proportional to the charge and inversely proportional to mass. Understanding this relationship is crucial for analyzing forces on charged objects in electric fields. The discussion emphasizes the importance of these calculations in physics.
cowgiljl
Messages
63
Reaction score
1
The question is a charge object has a mass of 9.11E-31 kg and a charge of 1.602E-19 coul. Calculate the strength of the electric field that would provide a force equal to the weight of the charged object

E = Fe/m 1.602E-19 / 9.11E-31

E = 1.76E 11

joe
 
Physics news on Phys.org
The force on a charge in an electric field is: F = qE. Set that equal to the weight of the object, which is mg. So qE = mg, thus E = mg/q.
 
: Thank you for providing the formula for calculating electric field strength for a charged object. Based on the given values, the strength of the electric field that would provide a force equal to the weight of the charged object would be 1.76E11. This shows that the electric field strength is directly proportional to the charge of the object and inversely proportional to its mass. This is a helpful calculation in understanding the forces acting on charged objects in an electric field.
 
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}...
I was thinking using 2 purple mattress samples, and taping them together, I do want other ideas though, the main guidelines are; Must have a volume LESS than 1600 cubic centimeters, and CAN'T exceed 25 cm in ANY direction. Must be LESS than 1 kg. NO parachutes. NO glue or Tape can touch the egg. MUST be able to take egg out in less than 1 minute. Grade A large eggs will be used.
Back
Top