{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

ohw18-problems

# ohw18-problems - marout(ssm979 – ohw18 – turner...

This preview shows pages 1–2. Sign up to view the full content.

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: marout (ssm979) – ohw18 – turner – (56725) 1 This print-out should have 15 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. 001 (part 1 of 2) 10.0 points A closed circuit consists of two semicircles of radii 44 cm and 23 cm that are connected by straight segments, as shown in the figure. A current of I = 4 A flows around this circuit in the clockwise direction. The permeability of free space is 4 π × 10 − 7 T m / A. O 2 3 c m 4 4 c m ˆ k ˆ ı ˆ ˆ is upward from the paper I = 4 A I What is the direction of the magnetic field B at point O . 1. vector B bardbl vector B bardbl = +ˆ ı 2. vector B bardbl vector B bardbl = + ˆ k 3. vector B bardbl vector B bardbl = − ˆ k 4. vector B bardbl vector B bardbl = +ˆ 5. vector B bardbl vector B bardbl = − ˆ ı 6. vector B bardbl vector B bardbl = − ˆ 7. None of these are true‘. 002 (part 2 of 2) 10.0 points Find the magnitude of the magnetic field at point at point O . Answer in units of μ T. 003 10.0 points The closed loop shown in the figure carries a current of 8 A in the counterclockwise direc- tion. The radius of the outer arc is 60 cm , that of the inner arc is 40 cm . Both arcs ex- tent an angle of 60 ◦ . The permeability of free space is 4 π × 10 − 7 T m / A. 4 c m C B 6 c m D A O 60 ◦ y z Find the component of the magnetic field at point O along the x axis. Answer in units of T . 004 10.0 points Given: Three conductors (same length) have the shape of an equilateral triangle (whose sides are of length ℓ 3 ), a ring (whose radius is of length r ), a square (whose sides are of length ℓ 4 ). These conductors’ lengths are all equal (perimeters are 3 ℓ 3 = 2 π r = 4 ℓ 4 ). All conductors carry the same clockwise current I as shown in the figure below....
View Full Document

{[ snackBarMessage ]}

### Page1 / 5

ohw18-problems - marout(ssm979 – ohw18 – turner...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online