Homework Help: PHYSICS

Posted by Alysse on Wednesday, October 17, 2012 at 3:36pm.

A long-straight wire carries a current and is aligned with the North-South direction. You place a compass 4 cm directly above the wire and above the North/East/South/West plane. The compass needle, which initially pointed North (far away from the wire) is now deflected by 20o from the North direction pointing West. (a)What is the direction of the conventional current? (b) What is the unit vector of the net magnetic field due to the wire and the Earth at the location of the compass? (c) If the Earth’s magnetic field magnitude is 0.05 mT in the plane of the compass and pointing North, then what is the current in the wire?

No one has answered this question yet.

Answer this Question

Related Questions

11th grade Physics - A long,straight current-carrying wire runs from north to ...
AP Physics - A long, straight wire carries a current of 740 mA. A thin metal rod...
physics - A long, straight wire has a 12.1 A current flowing in the positive x-...
Physics - A 550 turn solenoid is 15 cm long. The current in it is 33 A. A 3.0 cm...
physics - A long, vertical, straight wire carries a current I going upwards. The...
Physics - The wire in the drawing carries a current of 14 A. Suppose that a ...
Physics 2 - The wire in the figure below carries a current of 12 A. Suppose that...
Physics 2 - The wire in the figure below carries a current of 13 A. Suppose that...
Physics 2 - The wire in the figure below carries a current of 13 A. Suppose that...
Physics - A -6.00 µC charge is moving with a speed of 6.60 104 m/s ...

For Further Reading

First Name:
School Subject:
Answer: