Question

In: Electrical Engineering

Find the current-referenced sensitivity(output voltage per unit of field per unit of current)of a GaAs-based thin-film...

Find the current-referenced sensitivity(output voltage per unit of field per unit of current)of a GaAs-based thin-film Hall transducer with the length of 50μm, the width of 10μm and thickness of 5μm, provided that GaAsis doped to1*10^15cm-3. After placing this Hall transducer inside an energized magnet, the output voltage reached 250mV. Find the value of the magnetic field if the sensing current is 10mA.

Solutions

Expert Solution

Consider the hall sensor as shown below:

The expression for hall voltage is

                                                                

So the sensitivity is given by

                                                  

Here

                           

Plugging all values we get

                                              

(b) From Eq. (1),

                                                  

Or

                                          

Manojponduru answered 4 months ago
Next > < Previous

Related Solutions

A certain competitive firm sells its output for $10 per unit. The 200th unit of output...
A certain competitive firm sells its output for $10 per unit. The 200th unit of output that the firm produces has a marginal cost of $11. Which of the following is not necessarily true? Select one: a. Production of the 200th unit of output increases the firm's total revenue by $10. b. Production of the 200th unit of output increases the firm's variable cost by $11. c. Production of the 200th unit of output increases the firm's total cost by...
The output voltage of a power supply unit has an unknown distribution. Using a sample size...
The output voltage of a power supply unit has an unknown distribution. Using a sample size of 36, sixteen samples are taken with the following sample-mean values: 10.35 V, 9.30 V, 10.00 V, 9.96 V, 11.65 V, 12.00 V, 11.25 V, 9.58 V, 11.54 V, 9.95 V, 10.28 V, 8.37 V, 10.44 V, 9.25 V 9.38 V and 10.85 V. Let µ and σ2 denote the mean and the variance of the output voltage of the power supply unit. (a)...
1.) At current output a profit maximizing competitive firm gets $8 per unit produced and has...
1.) At current output a profit maximizing competitive firm gets $8 per unit produced and has average total costs of $12. When the market price is $8, the firm's marginal cost curve crosses its marginal revenue curve where Q=120 units. a. Draw two graphs side-by-side: On the left side, sketch a representation of the market equilibrium (i.e. supply, demand, market equilibrium quantity and market equilibrium price). On the right side, sketch a representation of the individual competitive firm's cost curves...
1.) At current output a profit maximizing competitive firm gets $8 per unit produced and has...
1.) At current output a profit maximizing competitive firm gets $8 per unit produced and has average total costs of $12. When the market price is $8, the firm's marginal cost curve crosses its marginal revenue curve where Q=120 units. a. Draw two graphs side-by-side: On the left side, sketch a representation of the market equilibrium (i.e. supply, demand, market equilibrium quanity and market equilibrium price). On the right side, sketch a representation of the individual competitive firm's cost curves...
Bob makes widgets. Variable costs per unit are $2. Fixed cost per unit (at an output...
Bob makes widgets. Variable costs per unit are $2. Fixed cost per unit (at an output level of 100) are $1 per unit. The normal sales price per unit is $5. A customer approaches Bob offering to buy 40 widgets for $4 each. Assume Bob has excess capacity. 1) What is the effect on operating income if he accepts the order? Additional revenue – additional cost = effect on oper. income. Fixed costs won’t change so additional costs = VC...
An infinitely long wire carries current I. Find the magnetic field due to this current. Find...
An infinitely long wire carries current I. Find the magnetic field due to this current. Find the vector potential A. Verify that your vector potential from part b produces your answer to part a.
Suppose that the output market is in perfect competition with the price of $10 per unit...
Suppose that the output market is in perfect competition with the price of $10 per unit and input market is a monopsony with the following information assuming that labor is the only input. Wage (W) L MP W MRP TP TR 1 20 20 200 20 200 2 18 40 180 38 380 3 16 60 160 54 540 4 14 80 140 68 680 5 12 100 120 80 800 6 10 120 100 90 900 7 8 140...
Suppose that output market is in a perfect competition with the price of $10 per unit...
Suppose that output market is in a perfect competition with the price of $10 per unit and input market is a monopsony with the following information assuming that labor is the only input. L: 1,2,3,4,5,6,7,8,9,10 MP: 20,18,16,14,12,10,8,6,4,2 W: 20,40,60,80,100,120,140,160,180,200 a. Fill in the missing values. b. What are the optimal level of employment and the corresponding profit for this firm? c. Graphically explain the profit maximization behavior for this firm.
A thin copper rod has a mass per unit length of 0.1 kg/m. What is the...
A thin copper rod has a mass per unit length of 0.1 kg/m. What is the minimum current in the rod that would allow it to levitate above the ground in a magnetic field of magnitude 0.5 T? (g = 10.0 m/s2) 2.9 A 2.5 A 2.2 A 2.0 A 1.8 A
A long, thin solenoid has 870 turns per meter and radius 3.00cm . The current in...
A long, thin solenoid has 870 turns per meter and radius 3.00cm . The current in the solenoid is increasing at a uniform rate of 65.0A/s . A)What is the magnitude of the induced electric field at a point 0.550cm from the axis of the solenoid? B)What is the magnitude of the induced electric field at a point 1.00cm from the axis of the solenoid?
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT