The diagram at the right shows a capacitor with two oppositely charged (Q) plate
ID: 1619796 • Letter: T
Question
The diagram at the right shows a capacitor with two oppositely charged (Q) plates. These produce an Electric field as shown(E) which has a plates is a charge q = -3.5 mu C. On the drawing show the direction of the Force on q with a dark arrow rightarrow Below, do a calculation of the Magnitude of the force on q: b) Suppose that the capacitor above had a value of 35 mF (milliF). What Voltage across the plates would be required to produce a charge Q = .42 Coul? As are most residential circuits, the resistors to the right are connected in parallel. That means they are independently connected to the (120 VAC) source. a) What is the current draw through each resistor? b) What is the Total power draw from the source for this circuit? A powerful particle accelerator has a radius of 0.75 km. It accelerates particles such as protons, whose charge is "e" which is 1.6 times 10^-19 C and mass 1.7 times 10^-27 kg at speeds of 2.5 times 10^8 m/sec. How great a magnetic field is required to produce this circular orbit?Explanation / Answer
5) a) Current through R1, current(1) = V/(R1) = 120/50 = 2.4 A
Current through R2, current(2) = V/(R2) = 120/75 = 1.6 A
Current through R3, current(3) = V/(R3) = 120/100 = 1.2 A
b) Total power drawn from source, P = V*I = 120*(2.4+1.6+1.2) = 624 W