ed ns .5. he measured. (a) Show that the amplitude of the emf induced in the Rogowski coil is Ɛ max = μonAwImax (b) Explain why the wire carrying the unknown current need not be at the center of the Rogowski coil and why the coil will not respond to nearby currents that it does not enclose. E ɛ. ●I(t) Figure P30.8 I - 9. A toroid having a rectangular cross section (a = 2.00 cm 3.00 cm) and inner radius R = 4.00 cm consists of by b N = 500 turns of wire that carry a sinusoidal current I sin wt, with I = 50.0 A and a frequency f= w/2π = 60.0 Hz. A coil that consists of N' = 20 turns of wire is wrapped around one section of the toroid as shown in Fig- ure P30.9. Determine the emf induced in the coil as a func- tion of time. max max N a R- -b- Figure P30.9 SECTION 30.2 Motional emf N'
ed ns .5. he measured. (a) Show that the amplitude of the emf induced in the Rogowski coil is Ɛ max = μonAwImax (b) Explain why the wire carrying the unknown current need not be at the center of the Rogowski coil and why the coil will not respond to nearby currents that it does not enclose. E ɛ. ●I(t) Figure P30.8 I - 9. A toroid having a rectangular cross section (a = 2.00 cm 3.00 cm) and inner radius R = 4.00 cm consists of by b N = 500 turns of wire that carry a sinusoidal current I sin wt, with I = 50.0 A and a frequency f= w/2π = 60.0 Hz. A coil that consists of N' = 20 turns of wire is wrapped around one section of the toroid as shown in Fig- ure P30.9. Determine the emf induced in the coil as a func- tion of time. max max N a R- -b- Figure P30.9 SECTION 30.2 Motional emf N'
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Transcribed Image Text:ed
ns
.5.
he
measured. (a) Show that the amplitude of the emf induced
in the Rogowski coil is Ɛ
max
=
μonAwImax (b) Explain why
the wire carrying the unknown current need not be at the
center of the Rogowski coil and why the coil will not respond
to nearby currents that it does not enclose.
E
ɛ.
●I(t)
Figure P30.8
I
-
9. A toroid having a rectangular cross section (a = 2.00 cm
3.00 cm) and inner radius R = 4.00 cm consists of
by b
N = 500 turns of wire that carry a sinusoidal current I
sin wt, with I = 50.0 A and a frequency f= w/2π =
60.0 Hz. A coil that consists of N' = 20 turns of wire is
wrapped around one section of the toroid as shown in Fig-
ure P30.9. Determine the emf induced in the coil as a func-
tion of time.
max
max
N
a
R-
-b-
Figure P30.9
SECTION 30.2 Motional emf
N'
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