Multiple Choice
Two long parallel wires carry currents of 20 A and 5.0 A in opposite directions.The wires are separated by 20 cm.At what point between the two wires do they produce the same strength magnetic field?
A) 4.0 cm from the 20 A wire
B) 8.0 cm from the 20 A wire
C) 12 cm from the 20 A wire
D) 16 cm from the 20 A wire
E) 18 cm from the 20 A wire
Correct Answer:
Verified
Correct Answer:
Verified
Q45: A proton is to orbit Earth at
Q46: A flat rectangular loop of wire is
Q47: A proton,starting from rest,accelerates through a potential
Q48: When the switch is closed in the
Q49: A proton,moving east,enters a magnetic field.Because of
Q51: A wire in the shape of an
Q52: An electron moves with a speed of
Q53: A circular metal loop of radius 10
Q54: Two long parallel wires are 0.400 m
Q55: An ideal solenoid is wound with 470