Recent content by Mike88

  1. M

    Net magnetic force in unit-vector notation

    Homework Statement The bent wire shown in the figure below lies in a uniform magnetic field. Each straight section is 2.0 m long and makes an angle of θ = 65° with the x axis, and the wire carries a current of 2.0 A. (a) What is the net magnetic force on the wire in unit-vector notation if...
  2. M

    Ideal circuit with 4 resistances and one emf.

    I forgot to attach it but i figured the problem out anyway.
  3. M

    Ideal circuit with 4 resistances and one emf.

    Homework Statement In the figure below, R1 = 5.50 , R2 = 18.0 and the ideal battery has an emf E= 12.0 V. (a) What is the size and direction of current i1? (Take right to be positive.) (b) How much energy is dissipated by all four resistors in 1.00 min? Homework Equations I = E/R...
  4. M

    Initially charged capacitor disharged through a resistor

    thanks for the help i figured out everything.
  5. M

    Initially charged capacitor disharged through a resistor

    i then get t = RC*ln(1/3) where RC = tau is this correct?
  6. M

    Initially charged capacitor disharged through a resistor

    Homework Statement A capacitor with initial charge q0 is discharged through a resistor. (a) In terms of the time constant τ, how long is required for the capacitor to lose the first one-third of its charge? answer x tau (b) How long is required for the capacitor to lose the first two-thirds...