*50. Determine the current I for the network of Fig. 8.124. *51. a. Replace the T configuration of Fig. 8.125 (composed of 6-kΩ resistors) with a m configuration. Solve for the source current Is, b. 3 ΚΩ 5A 2 ΚΩ *3 ΚΩ 3 ΚΩ • 3 ANN 3 ΚΩ Μ σκοτει 6 ΚΩ 3 ΚΩ FIG. 8.124 Problem 50
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- Q.6: Given R1=15N, R2=102, R3=222 and R4=152, find the current flowing through resistance R4. R2 R1 T 8.0V Ra R3 Vo S 12.0V V = k U = k. n.n qi9 j Liki rij Ceg = YN Gi - N 1A Q Ов Oc OD DE DE 2d S 1/2 M d 3 20 All of the resistors shown above are made of the same material. Their lengths & diameters are indicated. Choose all the ones that have the least resistance. DA 80 E D $ 1/2 4 d/2 a F4 R F CO % 5 2d T 2d 0- 1/2 MacBook Air 6 G & Y 7 47 H C DII 8 J NOTES N ASK YOUR TEAC K MQueston Three resistors are connccted as shown in the figure, where Ri=4.0 2, R2-2.02& R-3.0 S The potential difference between points A and B is 26 V. 5.00 points A B Ra How much current flows through the Ri? O 10.0 A O 4.0 A O 2.0 A O 6.0 A O 8.7A A Moving to another question will save this response. acer
- If gold (PAu = 2.44 x 10-8 N. m) and silver (PAg = 1.59 × 10-8 n. m) wires of equal length are found to have the same resistance. 4 a) Find the ratio of their radii (rAL/r Cu)? b) Which element (Au or silver) is better for conducting electrical current? Explain. LEGOe 11:15 55 1 4l & ONO 17 ! zain JO Imssb1.mutah.edu.jo/m For the following circuit in the figure below, find the power ( in units of Watt) delivered to the 2R-resistor when ɛ = 20.9 V and R = 3.0 Q? R R 2R R Select one: A. 36.4 B. 13.7 C. 109.2 D. 54.6 E. 18.2 +Under the influence of a constant E field of 700.0 N/C; 4.53* 1016 electrons pass through a 5.00 cm piece of wire in 5.00 seconds. a) What is the potential difference across the wire? b) What is the average current during this time period? c) What is the average power during this time? d) What is the effective resistance of the wire?
- none of the preceding DETAILS SHIPPS15 8.2.E.020. Two resistors with values of 29 0 and 45 0, respectively, are connected in parallel and hooked to a 18 V batte (a) What would be the current in the circuit? A (b) What would be the power expended in the circuit? W DETAILS SHIPPS15 8.2.E.018. A 13.0 W LED light bulb is turned on. It has an operating voltage of 120 V. (a) How much current (in A) flows through the bulh?How much energy is dissipated as heat during a two- minute time interval by a 1.5-kW resistor which has a constant 20-V potential difference across its leads? Select one: а. 48 J b. 72 J c. 58 J d. 16 J е. 32 JThe total current delivered to a number of devices connected in parallel is the sum of the individual currents in each device. Circuit breakers are resettable automatic switches that protect against a dangerously large total current by "opening" to stop the current at a specified safe value. A 1640-W toaster, a 1200-W iron, and a 1340-W microwave oven are turned on in a kitchen. As the drawing shows, they are all connected through a 20-A circuit breaker (which has negligible resistance) to an ac voltage of 120 V. (a) Find the equivalent resistance of the three devices. (b) Obtain the total current delivered by the source and (c) determine whether the breaker will "open" to prevent an accident (yes or no). (a) Number (c) î Circuit breaker 20 A 120 V i (b) Number i 10 Units Units
- 2. Determine the Load current at 5K Q resistor by using Thevenin's Theorem for the given Figure A2. [1.5M] 1kn 2kn 2.2kn Vs 1.5KN 1kn 5KO 15V Figure A2 ww wwHow much energy is dissipated as heat during a two-minute time interval by a 7.3 k2 resistor which has a constant 20 V potential difference across its leads? О а. 3.29J ОБ. 13.15 J Ос. 1.64 J O d. 6.58 J O e. 0.90 Ja) Remote control is connected to a stereo by 20 m distance by using copper wire. This copper wire has a resistivity of 1.7x10* Qm. What should be the diameter at the end of the wire if the resistance of wire must be less than 0.10 Q?