4. A copper wire of resistance 16 12 is cut into four equal pieces that are...
A piece of wire has a resistance R. It is cut into two pieces of equal length, and the pieces are twisted together parallel to each other. Part A What is the ratio of the resistance of the resulting wire to R?
a piece of copper wire of resistance R is cut into 10 equal lengths. These parts are connected in parallel. How does the joint resistance of the parallel combination compare with the original resistance of the single wire? The circuits, P and Q, show two different ammeter-voltmeter methods of measuring resistance. Suppose the ammeter has a resistance of 0.10 ohms and the voltmeter of 3.0 ohms; the ammeter reads 2.5 amps and the voltmeter reads 6.0 volts. What is the...
Please draw pictures!!! 20. (II) A length of wire is cut in half and the two lengths are wrapped together side by side to make a thicker wire. How does the resistance of this new combination compare to the resistance of the original wire?
The diameter of Four Gauge copper wire is 5.189 mm. Calculate the resistance (in Q) of 7.54 km length of such wire used for power transmission. The resistivity of copper is 1.68 x 10-9 Om.
Multiple Choices: 1pt _1. If the resistance of a copper wire is 1002 at 20°C, what is its resistance at 60°C? A. 11662 B. 12522 C. 13492 D. 14322 2. Three resistors of 2022, 60 2 and 100 are connected in parallel. The current through the 100 2 is 120mA. Determine the current through 2012 resistor, A. 1000mA B. 800mA 600mA D. 400mA 3. Three resistors of 6 ohm resistance are connected in delta. Determine the measured resistance of an...
Which of the following is the correct statement regarding resistance? a. the resistance of a wire is inversely proportional to the resistivity of the wire b. the resistance of a wire is directly proportional to the length of the wire c. the resistance of a wire is directly proportional to the area of the wire d. all of the above statements are correct e. none of the above statements are correct Consider two copper wires. One wire has twice the...
1) Upper Control Limit? 2) Lower Control Limit? Sampling 4 pieces of precision-cut wire (to be used in computer assembly) every hour for the past 24 hours has produced the following results: Hour R Hour x R Hour x R Hour x 1 3.35" 0.76"7 2.95" 0.58" 13 3.21" 0.80" 19 3.41" 1.66 2 3.20 88 2.75 1.0814 2.93 1.36 20 2.79 104 3 3.12 43 9 3.12 0.6615 3.22 1.06 212.55 1.03 4 3.29 1.31 10 2.75 1.33 16...
A) A number 16 copper wire has a diameter of 1.291 mm. Calculate the resistance of a 34.0 m long piece of such wire. (Use 1.72×10-8 Ωm for the resistivity of copper.) B) For safety, the National Electrical Code limits the allowable amount of current which such a wire may carry. When used in indoor wiring, the limit is 6.0 A for rubber insulated wire of that size. How much power would be dissipated in the wire of the above...
22-9. An electrical power line using No. 4 copper wire has a resistance of 0.248 ohm per 1000 ft and carries a current of 30 amp. If the potential at a point on the line is 250 volts, what is 'the potential at a point 5 miles farther along the line in the direction of the current?
QUESTION NO. 13 Find the equivalent resistance of sixty 99.92 resistances in parallel. A. 1.665 22. E. None of the above. B. 16.65 0. C. 166.5 2. D. 1665 22 QUESTION NO. 14 A certain wire has a resistance of 1.25 2. Find the new resistance if the length of the wire is doubled and the diameter of the wire is increased by 4 times. Hints: Resistance R P- B. 30 Q. C.40 02 D. 50 Q. A. 20 0...