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The Hall voltage across a conductor in a 50 mT magnetic field is 1.9 xV. When...
The Hall voltage across a conductor in a 44 mT magnetic field is 1.9 μV . When used with the same current in a different...
The Hall voltage across a conductor in a 44 mT magnetic field is 1.9 μV . When used with the same current in a different magnetic field, the voltage across the conductor is 2.8 μV . What is the strength of the second field?
The Hall voltage across a conductor in a 44 mT magnetic field is 2.0 μV ....
The Hall voltage across a conductor in a 44 mT magnetic field is 2.0 μV . When used with the same current in a different magnetic field, the voltage across the conductor is 3.0 μV .
I Review A Hall-effect probe to measure magnetic field strengths needs to be calibrated in a...
I Review A Hall-effect probe to measure magnetic field strengths needs to be calibrated in a known magnetic field. Although it is not easy to do, magnetic fields can be precisely measured by measuring the cyclotron frequency of protons. A testing laboratory adjusts a magnetic field until the proton's cyclotron frequency is 9.80 MHz . At this field strength, the Hall voltage on the probe is 0.547 mV when the current through the probe is 0.141 mA . Later, when...
Review Constan Consider the circuit of the figure (Figure 1). Part A If the voltage across...
Review Constan Consider the circuit of the figure (Figure 1). Part A If the voltage across the 30- k2 resistor is measured with a 50-kN2 voltmeter, what does the meter read? Express your answer to two significant figures and include the appropriate units. μΑ. ? V50 kn = Value Units Submit Request Answer Part B If the voltage across the 30-k2 resistor is measured with a 250-k voltmeter, what does the meter read? Express your answer to two significant figures...
A generator rotates at 89 Hz in a magnetic field of 0.050 T. It has 550...
A generator rotates at 89 Hz in a magnetic field of 0.050 T. It has 550 turns and produces an mms voltage of 180 V and an rms current of 65.0 A Part A What is the peak current produced? Express your answer to three significant figures and include the appropriate units. HẢI Value Units Submit Request Answer - Part B What is the area of each turn of the col? Express your answer to two significant figures and include...
A Hall effect probe used to measure magnetic fields is made with a copper bar of...
A Hall effect probe used to measure magnetic fields is made with a copper bar of thickness 2.50 μm . The conduction electron density of copper is 8.47x1028 m−3. Part A If the current in the bar is 440 mA , find the perpendicular magnetic field present when the Hall potential difference is 2.0 V . Express your answer to two significant figures and include the appropriate units. Part B If the current in the bar is 440 mA ,...
The on-axis magnetic field strength 15 cm from a small bar magnet is 5.1 pt. Wha...
The on-axis magnetic field strength 15 cm from a small bar magnet is 5.1 pt. Wha Expl Part Review What is the bar magnet's magnetic dipole moment? Express your answer to two significant figures and include the appropriate units. M = 8.6x10-2 A-m? Submit Previous Answers ✓ Correct Part B What is the on-axis field strength 19 cm from the magnet? Express your answer to two significant figures and include the appropriate units. I': HÅR OO? B = 3.0 •...
A 14-cm-diameter circular loop of wire is placed in a 1.11-T magnetic field. Part A When...
A 14-cm-diameter circular loop of wire is placed in a 1.11-T magnetic field. Part A When the plane of the loop is perpendicular to the foldlines, what is the magnetic flux through the loop? Express your answer to two significant figures and include the appropriate units. NA ? Value Wb Submit Request Answer Part B The plane of the loop is rotated until it makes a 40° angle with the field lines What is the angle in the equation :...
A 15.0 mH inductor produces a peak voltage of 10.6 V. s connected across an AC...
A 15.0 mH inductor produces a peak voltage of 10.6 V. s connected across an AC generator that Part A What is the peak current through the inductor if the emf frequency is 100 Hz? Express your answer to two significant figures and include the appropriate units. HA Value IL = Units Request Answer Submit Part B What is the peak current through the inductor if the emf frequency is 100 kHz? Express your answer to two significant figures and...
Review Part A A magnetic field is oriented at an angle of 50 ° to the...
Review Part A A magnetic field is oriented at an angle of 50 ° to the normal of a rectangular area 5.6 cm by 7.7 cm If the magnetic flux through this surface has a magnitude of 4.9x10-5T-m2 , what is the strength of the magnetic field? Express your answer using two significant figures. B-22 mT Submit X Incorrect; Try Again; 3 attempts remaining
I Review A Hall-effect probe to measure magnetic field strengths needs to be calibrated in a known magnetic field. Although it is not easy to do, magnetic fields can be precisely measured by measuring the cyclotron frequency of protons. A testing laboratory adjusts a magnetic field until the proton's cyclotron frequency is 9.80 MHz . At this field strength, the Hall voltage on the probe is 0.547 mV when the current through the probe is 0.141 mA . Later, when...
Review Constan Consider the circuit of the figure (Figure 1). Part A If the voltage across the 30- k2 resistor is measured with a 50-kN2 voltmeter, what does the meter read? Express your answer to two significant figures and include the appropriate units. μΑ. ? V50 kn = Value Units Submit Request Answer Part B If the voltage across the 30-k2 resistor is measured with a 250-k voltmeter, what does the meter read? Express your answer to two significant figures...
A generator rotates at 89 Hz in a magnetic field of 0.050 T. It has 550 turns and produces an mms voltage of 180 V and an rms current of 65.0 A Part A What is the peak current produced? Express your answer to three significant figures and include the appropriate units. HẢI Value Units Submit Request Answer - Part B What is the area of each turn of the col? Express your answer to two significant figures and include...
The on-axis magnetic field strength 15 cm from a small bar magnet is 5.1 pt. Wha Expl Part Review What is the bar magnet's magnetic dipole moment? Express your answer to two significant figures and include the appropriate units. M = 8.6x10-2 A-m? Submit Previous Answers ✓ Correct Part B What is the on-axis field strength 19 cm from the magnet? Express your answer to two significant figures and include the appropriate units. I': HÅR OO? B = 3.0 •...
A 14-cm-diameter circular loop of wire is placed in a 1.11-T magnetic field. Part A When the plane of the loop is perpendicular to the foldlines, what is the magnetic flux through the loop? Express your answer to two significant figures and include the appropriate units. NA ? Value Wb Submit Request Answer Part B The plane of the loop is rotated until it makes a 40° angle with the field lines What is the angle in the equation :...
A 15.0 mH inductor produces a peak voltage of 10.6 V. s connected across an AC generator that Part A What is the peak current through the inductor if the emf frequency is 100 Hz? Express your answer to two significant figures and include the appropriate units. HA Value IL = Units Request Answer Submit Part B What is the peak current through the inductor if the emf frequency is 100 kHz? Express your answer to two significant figures and...
Review Part A A magnetic field is oriented at an angle of 50 ° to the normal of a rectangular area 5.6 cm by 7.7 cm If the magnetic flux through this surface has a magnitude of 4.9x10-5T-m2 , what is the strength of the magnetic field? Express your answer using two significant figures. B-22 mT Submit X Incorrect; Try Again; 3 attempts remaining
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