Homework Answers
Resistors are indicated with color coding and the most common variation present is a 4 band resistor. it have first 2 bands for the resistance value,3rd one is multiplier and 4th one says about tolerance.
For precise measurement of resistors, tolerance band is used and it is useful in identifying which resistor will give you a more accurate resistance value. The smaller the tolerance percentage. the higher the precision of measurement.
Gold tolerance band is 5% tolerance, silver is 10% and no band means 20% tolerance. It means gold tolerance band gives more precise value.
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(5 pts) A common resistance of carbon resistors is 33Ω. How many 33Ω resistors, connected in...
(5 pts) A common resistance of carbon resistors is 33Ω. How many 33Ω resistors, connected in parallel, are needed to give a total resistance of 4.71 Ω? 2.
*11-1 The lattice parameter of copper is to be determined to a precision of +0.0001 A...
*11-1 The lattice parameter of copper is to be determined to a precision of +0.0001 A at 20°C. Within what limits must the temperature of the specimen be controlled if errors due to thermal expansion are to be avoided? The linear coefficient of thermal expansion of copper is 16.6 x 10-6 per °C.
Are the ones answered also correct? The precision of a measuring device is given by the...
Are the ones answered also correct?
The precision of a measuring device is given by the difference between two consecutive indicated measurements. In other words, how far apart are the closest indicated values or markings. For example, there are tick marks every millimeter on the ruler. At times, a measurement can be estimated to a smaller difference, but the precision of the device is determined just from the indicated values. What is the precision of the ruler? What is the...
4. (8 points) Precision Engineering invested $120,000 at 5 % interest, compounded annually for 4 years....
4. (8 points) Precision Engineering invested $120,000 at 5 % interest, compounded annually for 4 years. (a) How much will Precision Engineering have at the end of the 4th year? (b) What is the total interest earned in this investment? (c) How much is the simple interest in this investment based on its initial $120,000? (d) How much is the interest on interest?
According to the gold tolerance color band, these resistors each have a tolerance of 5% of...
According to the gold tolerance color band, these resistors each have a tolerance of 5% of their stated values. Are each of your resistors within this 5% tolerance? Please show your work when justifying your answers. How to calculate? For example value of: Resistor 1: Actual: 12V Experimental: 14V
If several resistors of different resistances are connected in series to a voltage source of known...
If several resistors of different resistances are connected in series to a voltage source of known value, how can the current present in the circuit be determined theoretically?
5) A circuit has two 9 V batteries and several resistors as shown. All resistors have...
5) A circuit has two 9 V batteries and several resistors as shown. All resistors have the same resistance. If the currents on resistors 2 and 3 are 1.65 A and 1.5 A, respectively, what is the value of the unknown resistance? [10 pts) winter an o ilar
4. (5 points) IEEE 754-2008 contains a half precision that is only 16 bits wide. The leftmost bit...
4. (5 points) IEEE 754-2008 contains a half precision that is only 16 bits wide. The leftmost bit is still the sign bit, the exponent is 5 bits wide and has a bias of 15, and the mantissa is 10 bits long. A hidden 1 is assumed. Write down the bit pattern to represent-1.09375 x 10-1 assuming a version of this format, which uses an excess-16 format to store the exponent. Comment on how the range and accuracy of this...
Three 100 ? resistors are connected as shown in the figure. The maximum power that can...
Three 100 ? resistors are connected as shown in the figure. The maximum power that can safely be delivered to any one resistor is 29.0 W. 100 ? 100 ? 1002 (a) What is the maximum potential difference that can be applied to the terminals a and b? 80.78 (b) For the voltage determined in part (a), what is the power delivered to each resistor? resistor on the left resistor at the top of the 725 28.99 loop resistor at...
How many 20 Ω resistors must be connected in series to give an equivalent resistance to five 200 Ω resistors connected in parallel?
How many 20 ΩΩ resistors must be connected in series to give an equivalent resistance to five 200 ΩΩ resistors connected in parallel?
(5 pts) A common resistance of carbon resistors is 33Ω. How many 33Ω resistors, connected in parallel, are needed to give a total resistance of 4.71 Ω? 2.
*11-1 The lattice parameter of copper is to be determined to a precision of +0.0001 A at 20°C. Within what limits must the temperature of the specimen be controlled if errors due to thermal expansion are to be avoided? The linear coefficient of thermal expansion of copper is 16.6 x 10-6 per °C.
Are the ones answered also correct?
The precision of a measuring device is given by the difference between two consecutive indicated measurements. In other words, how far apart are the closest indicated values or markings. For example, there are tick marks every millimeter on the ruler. At times, a measurement can be estimated to a smaller difference, but the precision of the device is determined just from the indicated values. What is the precision of the ruler? What is the...
4. (8 points) Precision Engineering invested $120,000 at 5 % interest, compounded annually for 4 years. (a) How much will Precision Engineering have at the end of the 4th year? (b) What is the total interest earned in this investment? (c) How much is the simple interest in this investment based on its initial $120,000? (d) How much is the interest on interest?
5) A circuit has two 9 V batteries and several resistors as shown. All resistors have the same resistance. If the currents on resistors 2 and 3 are 1.65 A and 1.5 A, respectively, what is the value of the unknown resistance? [10 pts) winter an o ilar
4. (5 points) IEEE 754-2008 contains a half precision that is only 16 bits wide. The leftmost bit is still the sign bit, the exponent is 5 bits wide and has a bias of 15, and the mantissa is 10 bits long. A hidden 1 is assumed. Write down the bit pattern to represent-1.09375 x 10-1 assuming a version of this format, which uses an excess-16 format to store the exponent. Comment on how the range and accuracy of this...
Three 100 ? resistors are connected as shown in the figure. The maximum power that can safely be delivered to any one resistor is 29.0 W. 100 ? 100 ? 1002 (a) What is the maximum potential difference that can be applied to the terminals a and b? 80.78 (b) For the voltage determined in part (a), what is the power delivered to each resistor? resistor on the left resistor at the top of the 725 28.99 loop resistor at...
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