Problem 9: A student uses a compass and a current-carrying wire to measure the horizontal component...
Fantastic news! We've Found the answer you've been seeking!
Question:
Transcribed Image Text:
Problem 9: A student uses a compass and a current-carrying wire to measure the horizontal component of the magnetic field in the laboratory. (This field includes the magnetic field of the Earth, but it may also be affected by nearby electronic equipment or magnetized materials.) Initially the compass is aligned so that the tip of the red arrow points to 0, magnetic north. A wire is aligned north-south at a distance 7.5 cm directly beneath the compass, as shown. A current is initiated in the wire, and when it is increased to 8.5 A, the compass needle points to 30.. Part (a) Calculate the magnitude of the magnetic field due to the current in the wire, B, in micro-tesla, at the location of the compass. Numeric A numeric value is expected and not an expression. B = T Part (b) What is the direction of the current in the wire? Multiple Choice : 1) The current flows from south to north. The current flows from north to south. 2) 3) The direction of the current may not be deduced. Part (c) Excluding the contribution from the current in the wire, what is the magnitude of the magnetic field in the laboratory, Bo, in micro-tesla, near the compass? Numeric A numeric value is expected and not an expression. Bo= T Part (d) Suppose the current is increased to 12.5 A. Where does the tip of the red needle point now? Enter your answer as an angle, 0, measured in degrees in the range 0 0 < 360. Numeric: A numeric value is expected and not an expression. A = Problem 9: A student uses a compass and a current-carrying wire to measure the horizontal component of the magnetic field in the laboratory. (This field includes the magnetic field of the Earth, but it may also be affected by nearby electronic equipment or magnetized materials.) Initially the compass is aligned so that the tip of the red arrow points to 0, magnetic north. A wire is aligned north-south at a distance 7.5 cm directly beneath the compass, as shown. A current is initiated in the wire, and when it is increased to 8.5 A, the compass needle points to 30.. Part (a) Calculate the magnitude of the magnetic field due to the current in the wire, B, in micro-tesla, at the location of the compass. Numeric A numeric value is expected and not an expression. B = T Part (b) What is the direction of the current in the wire? Multiple Choice : 1) The current flows from south to north. The current flows from north to south. 2) 3) The direction of the current may not be deduced. Part (c) Excluding the contribution from the current in the wire, what is the magnitude of the magnetic field in the laboratory, Bo, in micro-tesla, near the compass? Numeric A numeric value is expected and not an expression. Bo= T Part (d) Suppose the current is increased to 12.5 A. Where does the tip of the red needle point now? Enter your answer as an angle, 0, measured in degrees in the range 0 0 < 360. Numeric: A numeric value is expected and not an expression. A =
Expert Answer:
Related Book For
Posted Date:
Students also viewed these physics questions
-
A small compass is held horizontally, the center of its needle a distance of 0.280 m directly north of a long wire that is perpendicular to the earth's surface. When there is no current in the wire,...
-
A 100-turn coil with a radius of 10.0 cm is mounted so the coil's axis can be oriented in any horizontal direction. Initially the axis is oriented so the magnetic flux from Earth's field is...
-
A company is deciding whether to produce a new gadget at a plant located in a country close to consumers at a higher labor cost and shorter lead time or to outsource it to a country with a low labor...
-
Identify the proper statement presentation of the following investments: (a) Trading investments, (b) Short-term debt investments purchased to earn interest, (c) Debt investments purchased to earn...
-
Assume the following income statement and balance sheet information for the year ended December 31, 2017: Sales Cost of goods sold Gross profit Operating expenses $200 120 80 Rent Net income 30 $50...
-
LVDT transducer a. produces light pulses intermittently b. has high output and is insensitive to temperature c. frequently used in velocity pickups d. has high sensitivity and frequency range e....
-
General Long-term Liability and Capital Asset Transactions The Village of Nassau issued a 3-year, 6 percent note in the amount of $100,000 to finance the purchase of vehicles for the Public Works...
-
CH-CH, reacts 1000 times faster than Ph-CH=CH, with Br-HOAc but only 3.8 times faster with pCI-CH,SCI in HOAC at 25C. Explain.
-
Don buys a straddle on Lehigh that has a strike price of $40.90. The premium of the call is $1.35 and the premium of the put is $1.70. Calcuate the profit or loss on buying the straddle if at the...
-
What is internal energy? Prove that internal energy is a state function.
-
Deduce the expression on the work of compression in a two stage compression system.
-
Give a brief account of constant-volume and constant-pressure processes.
-
What are free energy functions? Classify them. Mention the importance of free energy functions in the analysis of thermodynamic processes.
-
When can heating effect instead of cooling effect be produced by a throttling device?
-
31. Primary source data is (a) collected by someone else and then used by a statistician (b) collected and used by a statistician (c) another expression for a confidence interval (d) another...
-
A Bloomberg Businessweek subscriber study asked, In the past 12 months, when traveling for business, what type of airline ticket did you purchase most often? A second question asked if the type of...
-
Sunlight, whose visible wavelengths range from 380 to 750 nm, is incident on a sodium surface. The work function for sodium is W0 = 2.28 eV. Concepts: (i) Will electrons with a greater value of KEmax...
-
Suppose that in Conceptual Example 8 (see Figure 16.24) the person is producing 1.1 mW of sound power. Some of the sound is reflected from the floor and ceiling. The intensity of this reflected sound...
-
A person working on the transmission of a car accidentally drops a bolt into a tray of oil. The oil is 5.00 cm deep. The bolt appears to be 3.40 cm beneath the surface of the oil, when viewed from...
-
Using the fourth-order Runge-Kutta method, solve Problem 11.15. Data From Problem 11.15:- Using the second-order Runge-Kutta method, solve the differential equation \(\ddot{x}+1000 x=0\) with the...
-
Using the central difference method, find the response of the two-degree-of-freedom system shown in Fig. 11.2 when \(c=2, F_{1}(t)=0, F_{2}(t)=10\). Figure 11.2:- X1(t) -x2(t) F(1) k=2 -F2(t) k = 4...
-
Using the central difference method, find the response of the system shown in Fig. 11.2 when \(F_{1}(t)=10 \sin 5 t\) and \(F_{2}(t)=0\). Figure 11.2:- X1(t) -x2(t) F(1) k=2 -F2(t) k = 4 k2=6 00000...
Study smarter with the SolutionInn App