Magnetic fields in current carrying conductor (straight wire)
IA
B
Magnetic fields in current carrying conductor(straight wire)
Class exercise(P.209#4(a)(i))
I
Magnetic fields in current carrying conductor(solenoid)
Solenoid 螺線管
A B
In which direction does the coil rotate?
example
The coil rotates in the clockwise direction as seen by the observer.
What will you observe when switch S1 / S2 is closed?
Shunt (分流器 ) example
Shunt
5 A 1 mA
IS
100
RS
Step 2: Use IG RG = IS RS to find RS
Step 1: Find IS
Multiplier (倍加器 ) example
Multiplier
5 V
100 A
VG VM
1000
RM