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Question 1:


Three previously uncharged capacitors are connected to a 10V battery as shown above. What is the charge on the top plate of C₁?

Question 2:


Points A and B contain two negative point charges -Q, as shown above. What is the value of the angle between the x axis and the net electric field at origin?

Question 3: A closed loop wire of resistance R and area A is placed in a horizontal plane that is situated in a magnetic field described by
B(t) = B·sin(ωt). The magnetic field is perpendicular to the horizontal plane. What is the maximum instantaneous current in the loop?

Question 4:

In the circuit shown above, switch S1 is closed at t = 0s. At time t₁ the voltage on the capacitor C is 90% of the voltage source E. t₁ =

Question 5:


The electrical potential difference V_A - V_A between points A and B is 400V. A and B are points placed on a circle of radius equal to 2m, as shown above. What is the magnitude of the uniform electric field E?

Question 6:


In the figure above, switch S is closed at t = 0s. What is the current through resistor R₁ imediately after the switch is closed?

Question 7:


Wire of resistivity ρ and length l has the cross-sectional area shown above. If r₁ = .001l, r₂ = .002l and the resistance of the wire is k/l, then k =