SSM An ac generator has emf ℰ = ℰ m sin( ω d t = π /4), where ℰ m = 30.0 V and ω d = 350 rad/s. The current produced in a connected circuit is i(t) = I sin ( ω d t = 3 π/ 4 ), where I = 620 mA. At what time after t = 0 does (a) the generator emf first reach a maximum and (b) the current first reach a maximum? (c) The circuit contains a single element other than the generator. Is it a capacitor, an inductor, or a resistor? Justify your answer. (d) What is the value of the capacitance, inductance, or resistance, as the case may be?
SSM An ac generator has emf ℰ = ℰ m sin( ω d t = π /4), where ℰ m = 30.0 V and ω d = 350 rad/s. The current produced in a connected circuit is i(t) = I sin ( ω d t = 3 π/ 4 ), where I = 620 mA. At what time after t = 0 does (a) the generator emf first reach a maximum and (b) the current first reach a maximum? (c) The circuit contains a single element other than the generator. Is it a capacitor, an inductor, or a resistor? Justify your answer. (d) What is the value of the capacitance, inductance, or resistance, as the case may be?
SSM An ac generator has emf ℰ = ℰm sin(ωdt = π/4), where ℰm = 30.0 V and ωd= 350 rad/s. The current produced in a connected circuit is i(t) = I sin (ωdt = 3
π/
4), where I = 620 mA. At what time after t = 0 does (a) the generator emf first reach a maximum and (b) the current first reach a maximum? (c) The circuit contains a single element other than the generator. Is it a capacitor, an inductor, or a resistor? Justify your answer. (d) What is the value of the capacitance, inductance, or resistance, as the case may be?
m
In the figure, an ac generator with emf & = Esin wat, where 8 = 24.2 V and wa= 386 rad/s, is connected to a 4.47 uF capacitor. (a)
What is the maximum value of the current? (b) When the current is a maximum, what is the emf of the generator? (c) When the emf of
the generator is - 12.7 V and increasing in magnitude, what is the current?
HI
(a) Number i
(b) Number i
(c) Number i
Units
Units
Units
8(
An ac generator produces emf 8 = Em sin(wat - π/4),
where 8m = 31.0 V and wd = 360 rad/s. The current in
the circuit attached to the generator is given by i(t) =
I sin(wat + π/4), where I = 634 mA. (a) At what time
after t = 0 does the generator emf first reach a
maximum? (b) At what time after t = 0 does the
current first reach a maximum? (c) The circuit
contains a single element other than the generator. Is
it a capacitor, an inductor, or a resistor? (d) What is
the value of the capacitance, inductance, or
resistance, as the case may be?
(a) Number i .006544
(b) Number i
(c)
capacitor
(d) Number
i
Units
Units
ms
ms
Units F
In an RLC circuit assume that R =5.00 , L =60.0 mH, fd = 60.0 Hz, and m = 30.0 V. For what valuesof the capacitance would the average rate at which energy isdissipated in the resistance be (a) a maximum and (b) a minimum?What are (c) the maximum dissipation rate and the corresponding(d) phase angle and (e) power factor? What are (f) the minimum dissipation rate and the corresponding (g) phase angle and (h) power factor?
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