Question

Section I True/False. For each of the following statements, say whether the statement is true or false For each false statement, supply a similar but modified statement that is true. (Warning these can be tricky. However, they are not meant to be ambiguous; if you find think is ambiguous, explain why and you will get credit if you one that you are convincing.) 1. Ifthe current in a sinusoidally-driven series RLC circuit leads the EMF, and we wanted to increase the rate at which energy is supplied to the resistor, then we would decrease the capacitance. 2. An AC EMF in a certain circuit has a smaller resistance than that of the resistive load in the circuit; to increase the transfer of energy from the device to the load, a transformer will be connected between the two. To do so, Np (the number of turns the end connected to the EMF) should be less than Np (the turns connected to the load on electromagnetic plane wave, the E and B fields must have the same frequency but may have a phase shift between them 3. In an 4. The Poynting vector describes energy transfer and is therefore zero for static electric and magnetic fields. 5. The existence of radiation pressure indicates that a powerful laser gun would have "kick" just like a ballistic weapon, though much weaker a 6. For a purely resistive circuit (EMF and resistor), the maximal current is related to the EMF in a way that is independent of the EMF frequency; but this is not true if an inductor or capacitor is added

Answer 1

V^2 = F_T/mu (a) y = 183 x - 0.178 y = mx + c v = 1/squareroot mu squareroot T + c 1/squareroot mu = 183 mu = (1/183)^2 mu = 2.986 times 10^-5 kg/m (b) mu_T = 3 times 10^-5 mu almostequalto mu_T as 2.986 almostequalto 3 \r\n (3) if E = E_0 sin(vx - wt) then B = B_D sin (vx - wt) No phase shift between them False (4) These can be follow of energy in static field so panting vector can be non-zero Sol: False (5) True radiation pressure apply Force and (impulse) (6) I = v/R sin (wt) I_max = v/R true but X_L & X_L is dependent on w So, phi statement is true.