What must be the direction of the current

Reference no: EM13996700

A 47x10^-6, uniform magnetic field is directed to the left in the plane of the paper. A wire, W, lying perpendicular to the plane of the paper carries a current I. The resultant magnetic field at D (10cm from the wire is zero).

a) What must be the direction of the current I? explain

b) What is the magnitude of the current?

c) If A is the same distance from the wire as is D, draw the direction of the result magnetic field at point A.

Reference no: EM13996700

Questions Cloud

Prove the first two equalities : Prove the first two equalities and give an example of two subsets of R for which both of latter two equalities fail - Suppose that f and g are continuous functions from a topological sapce X into a Hausdorf space

What is the final temperature : The "steam" above a freshly made cup of instant coffee is really water vapor droplets condensing after evaporating from the hot coffee. What is the final temperature of 260 g of hot coffee initially at 85.0oC if 2.50 g evaporates from it?

What time will the ball be : A steel ball is hung from a vertical ideal spring where it oscillates in simple harmonic motion with a period T. At time t = 0 s, the ball is at its maximum displacement, A, from its equilibrium position. In terms of the period, at what time will t..

Find the horizontal component of its velocity : A steel ball is thrown in the air with a speed of 3.6 m/s at an angle of 70 degrees from the horizontal. It drops on another steel ball of 1.4 times its mass resting on a sandy surface. If the original ball comes to a rest after the collision and ..

What must be the direction of the current : What must be the direction of the current I? explain What is the magnitude of the current? If A is the same distance from the wire as is D, draw the direction of the result magnetic field at point A.

How modern liberalism varies from classical liberalism : So who would like to explain how modern liberalism varies from classical liberalism? In addition, in what ways is classical liberalism similar to conservatism today

Describe four duties of the controlling contractor on a site : Explain the difference in fall protection requirements for connectors working in steel erection between 15 feet and 30 feet in height and connectors working more than two stories or 30 feet in height.

What is the increase in its length : A steel pipe has a length of 10.7 metres at 20C. What is the increase in its length if the steam at 420C runs through this pipe? The coefficient of expansion for steel is 11x10-6 m/ 0Cm.

How large should the gaps be to allow temperatures up : Steel rails 24.0 m long are laid end to end with gaps between them to account for thermal expansion. If the track is laid when it's 15 oC, how large should the gaps be to allow temperatures up to 35 oC? Express your answer to two significant figures ..

User Account

All Pages