A hall-effect probe operates with a 120 -ma current when, Ask an Expert

Academics

A Hall-effect probe operates with a 120 -mA current. When the probe is placed in a uniform magnetic field of magnitude 0.0780 T, it produces a Hall voltage of 0.740 µV.

(a) When it is used to measure an unknown magnetic field, the Hall voltage is 0.340 µV. What is the magnitude of the unknown field?

.............. mT

(b) The thickness of the probe in the direction of B is 1.60 mm. Find the density of the charge carriers, each of which has charge of magnitude e).

.............. m-3

View complete question

Physics, Academics

Category:- Physics
Reference No.:- M91053625

Have any Question?Write your Review or question?

Related Questions in Physics

Question a parallel-plate air capacitor has a capacitance

Question: A parallel-plate air capacitor has a capacitance of 920 pF. The charge on each plate is 2.55 ?C What is the potential difference between the plates? If the charge is kept constant, what will be the potential di ...

What is the centripetal force which acts upon a 588 kg

What is the centripetal force which acts upon a 588 kg race car as it rounds a curve with a radius of curvature of 375 m at 60 m/s? please provide work to explain

Question in this problem you will derive two different

Question: In this problem you will derive two different formulas for the power delivered to a resistor. What is the power P supplied to a resistor whose resistance is R when it is known that it has a voltage V across it? ...

An oil film n 148 floating on water n 133 is illuminated

An oil film (n = 1.48) floating on water (n = 1.33) is illuminated by white light at normal incidence. The film is 274 nm thick. The reflected light will be predominately a single color. Find the wavelength of the domina ...

A hunter wishes to cross a river that is 1 km wide and that

A hunter wishes to cross a river that is 1 km wide and that flows with a speed of 3 km/h. The hunter uses a small powerboat that moves at a maximum speed of 11 km/h with respect to the water. What is the time necessary f ...

Question your physics textbook is sliding to the right

Question: Your physics textbook is sliding to the right across the table. Part A Identify all forces acting on the object and draw a free-body diagram. Draw the vectors starting at the black dot. The location and orienta ...

Question the passengers in a roller coaster car feel 50

Question: The passengers in a roller coaster car feel 50% heavier than their true weight as the car goes through a dip with a 30.0 m radius of curvature. What is the car's speed at the bottom of the dip? The response mus ...

Near the earths surface a compact car of total mass m is

Near the Earth's surface, a compact car of total mass M is driven on a large, revolving, horizontal, disk-shaped platform which itself rotates about its center at a fixed angular frequency ω. At t = 0, the driver leaves ...

What is the ideal speed to take a 80 m radius curve banked

What is the ideal speed to take a 80 m radius curve banked at a 30.0° angle?

Question an object of mass m attached to a spring of force

Question: An object of mass m attached to a spring of force constant k oscillates with simple harmonic motion. The maximum displacement from equilibrium is A and the total mechanical energy of the system is E. What is th ...

4,153,160 Questions Asked
13,132 Experts
2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Recent Questions

Ask Physics Expert